Nikon Zf - Elevating Your Manual Focus Game

Рет қаралды 68,385

Күн бұрын

#Nikon #NikonZf #voigtlander #nikkorz
There has been a lot of hype on the all new Nikon Zf, and one of it's best features is the enhanced manual focus capabilities. Wirth Subject Detect Manual Focus, the camera can speed up the manual focus process to capture those moments much faster than other cameras on the market. In this test, I review the Nikon Z mount Voigtlander 50mm and 25mm f2 APO-Lanthar lenses and the rare Nikkor 58mm f1.2 Noct.
Chapters
00:00 Intro
00:52 Intro to Voigtlander 50mm f2 APO-Lanthar
01:54 Subject Detection Manual Focus
04:00 Impressions After Two Weeks
04:40 Grip Options
05:48 Street Photography with the Nikon Zf
07:35 Voigtlander 35mm f2 APO-Lanthar
09:44 Issues with Touch Functionality in Manual Focus
10:25 Nikkor 58mm f1.2 Noct with Nikon Zf
12:29 Video Sample with Nikkor Noct and Nikon Zf
13:13 Conclusion
Big thanks to Riceball Photography for providing the Voigtlander lens for review.
Videographer: JP Pillay
Camera: Sony ZV-E1, Nikon Z9, Nikkor 24-70 f2.8 S, Nikkor 135 f1.8 Plena
Sennheiser AVX
Edited On MacStudio M2 MAX
Mac Studio Display
Lights: Aputure 300X Amaran T2c, Amaran F21c, Amaran COB 60X, Amaran P60c
Display Cabinet: Terravault
Chair and Desk: Secret Lab

Пікірлер: 395

@Gobekadam 8 ай бұрын

Finally, a review of Nikon ZF with manual focus lenses - especially with the Voigtlander lenses. Thank you so much! I was really wondering how well ZF would pair with the Voigtlander lenses, given that aperture ring is on these lenses, making them a great combo for retro style shooting.

@btonelli 8 ай бұрын

Indeed. They pair beautifully

@12barko 7 ай бұрын

is the manual focous assist wit hthe eyes closeup apply also for the zfc?@@btonelli

@dakotaxu4792 7 күн бұрын

You really bring a lot of adventure and excitement in your videos! I really love this particular video !

@btonelli 7 күн бұрын

Thank you 🙏

@SkandaTejasw 6 ай бұрын

Your video is impactful and delightful. Inspiring enough that I went ahead and got myself a 50mm APO Lanthar right after watching this! Also, thumbs up on the funky background music. Totally loved it.

@btonelli 6 ай бұрын

Thank you! Hope you enjoy the lens!

@domtomas1178 8 ай бұрын

Yessss!!! Thank you for this brilliant walk around with the Zf and some fantastic Voigtlander lenses. Exactly what I’ve been wanting to see since Nikon’s announcement. Been using Fuji and some legacy lenses, but this looks like an even better full frame option. And the Voigtlander lenses do match the Zf beautifully!

@btonelli 8 ай бұрын

Glad you enjoyed it! They are a great combo especially for manual focus.

@vincent7603 3 ай бұрын

Mate subscribed! Love how active you are with your community!

@btonelli 3 ай бұрын

Thank you!! That’s why I like doing this is to answer questions and learn from everyone and share my experiences

@Patrice48h 8 ай бұрын

Bobby, another great video on the beautiful camera. Hats off to Nikon for bringing this project to the market. Also very much appreciate your street photography style and how you are not afraid (as I am) to interact with your subject and ask for pictures!!! Please keep pushing your own style!!! Love it!!!

@btonelli 8 ай бұрын

Thanks!! Honestly this approaching method is something I’ve gotten the courage to do lately. I was a bit fearful before, but if I approach kindly and they say no I say thank you and move on. There were a few times this happened while filming but also because I had a camera man with me so it’s a bit more intimidating. Kindness with strangers can sometimes bring to light special moments especially with street photography 😊

@Patrice48h 8 ай бұрын

@@btonelli I am leaving for 3 weeks in Spain this week and will definitely try your approach it with my Leica Q2-M!!! Thanks Bobby and keep inspiring us!!!

@btonelli 8 ай бұрын

@@Patrice48h be safe. Also if you go to the street markets and you see the Nigerian sellers just don’t even ask for photos. They are quite paranoid and can be easily agitated when it comes to photography. I’m speaking first hand :)

@AbbeyRoadDuluth 6 ай бұрын

Your video was the inspiration for me to order the 50/2 APO for the Zf. It is simply exquisite. The native Z-mount 50 1.8s is also great, but clinically so. The APO brings with it unbelievable sharpness, but with meaningful character the Nikon doesn't grab. The manual focus capability of the Zf, with the luxurious feeling of the APO's manual focus is such a great combination that makes you WANT to take pictures. Thanks for the video and the tip!

@btonelli 6 ай бұрын

Thanks for watching and glad you found the lens review helpful. It’s a fantastic lens and pairs beautifully together with the Zf.

@DoubleB13 8 ай бұрын

Thanks for sharing this. Really useful video and love that combo with Voigtlander lenses

@btonelli 8 ай бұрын

Thanks for watching. Yes the combo is fantastic

@jaimeduncan6167 2 ай бұрын

Loved the pictures and a very nice review of the capabilities.

@jorsetti 6 ай бұрын

Thanks Bobby! love these older Nikkor glass lens reviews, kudos!

@btonelli 6 ай бұрын

Thanks for watching! More of these lens reviews coming

@dakotaxu4792 7 күн бұрын

Bobbyyyyyyyy! You just made my life easy because I had no idea that a manual focus lens could be used so easily with the Nikon Z9 that I have. I’m no stranger to using a manual focus lens. I’ve used the Zeiss Otus 85mm on the Canon 1DX Mark II in the past. But now that eye focus us here (it’s still new to me because I JUST bought the Z9 recently) I have been nailing every shot on the Z9 with the Z85, the Z135 PLENA, and the Z50mm f1.8 However I want to buy the Voigtlander 40mm f1.2 (on back order at B&H) for the Z mount because I can’t stand the fact that the Nikon Z40mm f2 has a plastic mount and I was griping that I’d have to focus manually……. when I saw your video! 😊😊😊 thank you 🙏

@btonelli 7 күн бұрын

Most welcome

@Photojouralist123 8 ай бұрын

Used my ZF with my 35 Sumilux and Voitlander 50 f1.0 Nikon did it again!!!! Thanks for your video

@btonelli 8 ай бұрын

I saw your posts!! Awesome combos

@Photojouralist123 8 ай бұрын

@@btonelli you and I think alike Bobby

@antoniog8276 8 ай бұрын

Ah man, that is just such a fantastic idea and implementation of subject detect!

@btonelli 8 ай бұрын

Agree!! It’s a feature that just makes so much sense

@nespressoman 7 ай бұрын

I am so glad I found your channel after buying my Zf. You are f**king brilliant. Thank you.

@btonelli 7 ай бұрын

🙏 thank you

@chouandsherrie 3 ай бұрын

Kinda life changing when I tried it with the noct and combined with that shutter noise was amazing. Thanks for highlighting the focus aspect

@btonelli 3 ай бұрын

It’s awesome right! Thanks for watching

@bigboi36 8 ай бұрын

Fantastic review, bro 🎉 I truly hope to get this camera before the end of the year. I'm trying to hold out for a 180200 and Z500/ Z90. I currently have a Z50 and Z 24-70|2.8S and adapted Voightlander 40|2 and 58|1.4

@btonelli 8 ай бұрын

Thanks! Not sure what the APS-C lineup will be like or if there will be more cameras coming out this year. Never know though :)

@ajkt208 7 ай бұрын

Great video as always & yes ! I love it that the Zf can subject detect even when manual focusing even for 3rd party lenses

@btonelli 7 ай бұрын

Indeed. Great feature

@hyrenfabregas5913 7 ай бұрын

Wooo Singapore!! Excellent video, audio was absolutely perfect. What mic did you use for this?

@btonelli 7 ай бұрын

Thank you! Used a countryman mic, Sennheiser AVX setup and used Auphonic for post processing

@thomasfox5476 8 ай бұрын

Thanks for the update.👍

@btonelli 8 ай бұрын

Thanks for watching

@kjltube 8 ай бұрын

Lovely, just the kind of video I was looking for. I’ve got a Z mount Voigtlander 40mm f1.2 waiting for my Zf which should be somewhere between the apo 35mm and the Noct you used 😛

@btonelli 8 ай бұрын

Thanks! Yes that’s a good lens! Tried that. Not as modern rendering as the APO and not as soft as the 1.2 but sits beautifully in between

@Pembers357 8 ай бұрын

Really informative video. Is it a single button push to punch in/zoom to get critical focus?

@btonelli 8 ай бұрын

Yes. You can assign or use the dedicated button on the back to do this

@chewblogger 8 ай бұрын

Thanks Bobby for this video. This is highly interesting as I use Voigtlander lenses too and have paired them with Nikon, Fujifilm, Sony and Leica. So would love to try them on Zf.

@btonelli 8 ай бұрын

Thanks for watching. This will be a fun camera to adapt lenses too. I see this aspect of the camera being a go to for vintage lens owners

@ofeykalakar1 8 ай бұрын

@@btonellialready do this with vintage LTM, M and F mount lenses with the Z8 and a Fotodiox Propronto MtoZ AF adapter. If I want F lenses to AF, I add a static M to F mount adapter onto the Propronto. A really magical lens is the Voigtlander 50 f1 Nokt at f1 and the 58 f1.4 Nokt. With this adapter the MFD of these vintage lenses is shockingly small. The Canon 35 f2.8 Serenar (1951) goes from 1 meter down to 20 cm!

@waynerm002 8 ай бұрын

Great review of the manual subject detection feature. I’m a bit surprised about the screen in the bright sunlight, was hoping it would be like the Z8/9, guess they had to cut corners somewhere. Great looking camera.

@btonelli 8 ай бұрын

Thanks Wayne. Yeah the screen wasn’t doing well in the bright sunlight which was a bit surprising

@animook1 8 ай бұрын

I was wondering - do other Nikon cameras have that subject detection mode available in manual focus also? Or is it just Nikon Zf feature? Thanks a lot for clarification.

@btonelli 7 ай бұрын

Not that I know of. Z8 and Z9 do not currently.

@philippdiers4853 6 ай бұрын

Great video! Does focus confirmation / eye detect in manual focus mode work with any adapted lens (e.g. Leica M glas with a mechanical adapter) or does this require electronical communication with the lens?

@btonelli 6 ай бұрын

Thanks! Works with any adapter or lens. It’s from the sensor. You won’t get the green box but you will get the white box over the eye. Use focus peaking and magnification to nail focus

@philippdiers4853 6 ай бұрын

Thank you! 👍

@RobertFalconer1967 8 ай бұрын

There's the Zf with the Voigtländer! Boy, that APO-Lanthar on the Zf ain't giving up much, if anything, to an M10 with a Summicron. What a great combo for street and travel. No cow detection...or you could argue that the Zf was smart enough to recognize that it wasn't a real animal, lol. The Zf checks off so many boxes. And honestly, I would rather have 24 ultra clean MP (and phenomenal low light performance) over 45 native MPs most of the time. Lots of great software programs now that enable you to upscale images in post if you really need to. And speaking of low light, I hope you get a chance to try the Zf with the Voigtländer Nokton Z 50mm f/1.0 on the Zf. My guess is that's gonna be the world's reigning low light combo right there. Quick questions, Bobby: Do we actually know yet how many stops of effective IBIS are available on the Zf with those coded Voigtländer Z mount lenses? Also wonder if that 'focus point stabilization' feature remains engaged while one is using a manual lens? Finally, did you determine if you can move the focus points around with the D-Pad (even in autofocus), instead of the LCD screen? Cheers...

@btonelli 8 ай бұрын

Hi Robert yes these Voigtlander lenses are fantastic to use. They pull out a lot of detail with nice colours. Haha yes the camera might be smarter on the cows I give it credit for 😂 I’m not sure if the f1 is available yet for the Z mount. I’ve tried it when it first came out and it’s a fantastic lens. Agree will be a low light beast. In terms of IBIS I believe it’s 7 stops with these lenses attached. Only 8 stops with certain lenses. Yes you can move the AF point with the D pad and not the screen if you choose to. On the Zf it gives you the option to choose which you would like.

@fededuran2523 6 ай бұрын

Hi Bobby. Is this feature also available in the Z8-9 line? Nice video, as usual. Hug from Spain.

@btonelli 6 ай бұрын

Thank you for watching. Unfortunately it’s not at this time. It’s exclusively for the Zf

@AccessiblePhotography 8 ай бұрын

Hi. I may have missed something and hope you can clarify. With an old lens like your Nikon 58mm, does the camera still provide the eye detection and subject detection that you showed at the start of the video? Like another commenter I have the ZFc and like the look of the ZF but weight is very much an issue. I will also need to have a hands on try some point soon. Thanks. Alastair.

@btonelli 8 ай бұрын

Hi. Yes it does still show eye detection. This is from the sensor level not the lens. Yes it’s slightly heavier and larger but feels good in the hands. When you pick up will notice it’s not that bad.

@AccessiblePhotography 8 ай бұрын

@@btonelli thanks that’s a great help. Now, how do I get the money for one lol.

@ria3144 7 ай бұрын

@@btonelli Are You shure? in the manual of the FTZ is written, that electronic rangefinder in Manual Focus doesn´t work

@kentjoosten8149 4 ай бұрын

@@ria3144the range-finder focus does not work with non-chipped lenses. The eye-detection does.

@VizionZine 8 ай бұрын

Nice! I recently pre-ordered the ZF to mostly shoot manual focus lenses and I do portraits so the eye detect punch in zoom is definitely a nice feature. I have the Biotar 58mm f1.5 II from Meyer Optik Gorlitz and want to try it out on the ZF. You should do a review of that lens and the new 75mm when you get the chance.

@ortonphotoart5770 8 ай бұрын

Hey, that sounds like an awesome set-up! I've also pre‐ordered the zf and I'm looking forwards to manual focus assists for my meostigmat 70/1.4 (biotar rendering). I'm also considering the techart‐art tzm-2 AF adaptor, have you seen that? With the zf AI tracking, it may enable me to shoot street photography from the hip with 70/1.4, that would be amazing!

@btonelli 8 ай бұрын

That sounds like a fantastic setup. Would love to try those lenses, hard to find here in Singapore though

@Teledible 6 ай бұрын

I was just thinking about this lens on that set up. Waiting on that set up too. Please do a write up or a video if you do pair it up! I wonder how that would compare to the Voigtlaender Nokton 50mm f/1.0 z mount set up.

@VizionZine 6 ай бұрын

@@Teledible I actually mostly use the CV 50mm f1 on the ZF now. It's great!

@Teledible 6 ай бұрын

@@VizionZine ah! I just got the 50mm f1 too. Wonder how does that stack up to the gorlitz biotar 58mm ii and the 75mm! deciding which lens I should get next to use with the ZF really, a wide angle or telephoto lens hmm

@fossilizedlemonade2.0 7 ай бұрын

Just picked this up recently… getting it in tomorrow… looking forward to shooting some vintage glass on it! Have you got any M42 lenses you’ve tried with it?

@btonelli 7 ай бұрын

Congrats! No I don’t have any M42 lenses

@energydw8260 7 ай бұрын

thanks for the video. Newbie q: why would a manual focus lens benefit from the subject detection feature? Even if it detects the subject, you still have to manually adjust the lens to focus, right?

@btonelli 7 ай бұрын

Thanks for watching. Good question and the reason is with manual focus subject detection nailing focus on the subject is easier because when it detects the face, eye or subject when you magnify in it goes right to the face or eye etc so it speeds up the process of manual focusing. Also the IBIS in the system adjusts itself to stabilise the subject in focus vs the center of the frame

@whitewalker9622 8 ай бұрын

Just an idea, do you remember the "fm" focus system? Or how we used to change the glas plates? That is what I have wanted for a manual focus assist. Or at least as a choice

@btonelli 8 ай бұрын

Ahh yes. Unfortunately these various option you would get with the FM don’t apply here. I think Fujifilm has something a bit more like that though.

@pgulysse1 8 ай бұрын

Thanks Bobby. I found this camera beautiful. #Nikon nailed it. Good job @nikon. If the features in the #zf are put back in the next #zfc as well later(+ ibis, headphone jack, better biilt), I think will have an interesting pair of retro cameras DX and FX.

@btonelli 8 ай бұрын

Indeed. Here is to hoping for these features to come to the Zfc in the future

@marcusoutdoors4999 3 ай бұрын

I went down the Leica route a few years back, but the new Nikon changes the equation. A fantastic review.

@btonelli 3 ай бұрын

Thank you. Leica has something similar in the SL3

@Chris-13 8 ай бұрын

Great video, thank you 🙏🙏🙏

@btonelli 8 ай бұрын

Thanks for watching

@Pillone94 8 ай бұрын

Hi Bobby, I read in the forums that Nikon removed the sensor shield. could you tell me if this is true? I thank you and appreciate your work 🙏🏻

@btonelli 8 ай бұрын

Yes the sensor shield is not there on this camera. Not sure if they will add this in since in essence it’s the shutter coming down but will see

@KibbitUpIt 8 ай бұрын

Nice review! Bobby, do you know if the ZF has focus trap? That’s my go to for manual lenses

@btonelli 8 ай бұрын

I asked and not that we are aware of but it has been brought up to the product team so perhaps in a future firmware release? Don’t know what they will improve, but Nikon is constantly updating the newer Z cameras with more features

@KibbitUpIt 8 ай бұрын

@@btonelli thanks!

@LarsSteenhoff 8 ай бұрын

It has focus trap for autofocus lenses for sure because thats what the z8 has, but its mostly needed for manual focus lenses, the ones with a cpu chip should be easy for nikon to allow it to have this function. In AFC and AFS mode you can set shutter to release only when in focus, but in MF mode its not an option, what nikon needs to add is the same option in FM mode. a2: AF-S priority selection = Focus a7: AF activation = AF-ON only / Out-of-focus release = Disable Nikon needs to add MF priority selection = Focus

@KibbitUpIt 8 ай бұрын

@@LarsSteenhoff thanks! I have a few Leica M lenses that I plan to use with the TTartisan MTZ 6bit adapter

@enshongmiranda 8 ай бұрын

There's even a better "hack" that many miss out with Nikon Z cameras. Buy the TTArtisan M-Z 6bit adapter, get a Leica M-mount lens or vintage lens mounted on an M-mount adapter, set the AF-S and AF-C priority selection to "Focus" and set the AF Activation to "AF-ON only" with "Out of focus release" disabled. You now have a Trap Focus enabled AND eye/face detection works with it. Press the shutter button the whole way but it will not take a photo if the eye/face is not in focus yet. Turn the focus manually and if the eye/face is already in focus, the camera will take a shot (or shots). You need the TTArtisan adapter as it is chipped and makes trap focus enabled. Basically any lens that you can adapt to a Leica M-mount can now be used with trap focus. The adapter will also let you add focal length and aperture data on the EXIF.

@btonelli 8 ай бұрын

This sounds a bit complicated haha and pricey. So you need to get two adapters to make it work?

@enshongmiranda 8 ай бұрын

@@btonelli I agree, it can be a bit confusing the way Nikon hid it around the menus. I could make a video about it but I can't be bothered right now. Haha. But there are old videos on it as "trap focus" works on many Nikon DSLRs and mirrorless. And Nikon could've just made trap focus work on all manual lenses but they limit it to AF lenses (F or Z) that for some reason. 😅 The only way to make it work is if the lens has a particular chip or with the said TTArtisan 6bit adapter. If you use M-mount lenses, you just need the M-Z 6bit adapter. But if you want to mount other vintage or DSLR lenses and have trap focus work, you need to adapt it to M-mount. The adapters themselves aren't really that expensive. If you have a collection of old F-mount lenses or any other vintage lens, it could be a worthwhile investment in time and $50-75. Haha. If you have any connection with Nikon, please let them know that they should capitalize on the trap focus function and make it simpler and work on all manual lenses especially for the retro-styled bodies like the Zf.

@enshongmiranda 8 ай бұрын

@@btonelli One thing I'm not sure of though is if it works with the Voigtlander Z-mount lenses. I think they're chipped? If it does work then that would really make the Voigts even more appealing. Imagine having not to punch in all the time if you want to make quick street shots whether with face/af detection or manual subject tracking.

@btonelli 8 ай бұрын

@@enshongmiranda I’ll need to ask Nikon Singapore on this. The voigtlander lenses are chipped so they should perform and react like a native lens.

@vikdaddy 8 ай бұрын

Hi Bobby. When using third party manual lenses, i.e. lenses without the electronic connection (such as M mount), how do you get the green focus box confirmation? I can't get it to work! Maybe it only works when you use lenses that are Z mount? Thanks!

@btonelli 8 ай бұрын

Under photo shooting menu make sure your AF/MF Subject Detection Options are turned on and Also right below MF Subject Detection Area is turned on.

@vikdaddy 8 ай бұрын

@@btonelli thanks Bobby! Both are turned on though, still no green detection. Maybe it only works with Z mount lenses with electronic contacts.

@btonelli 8 ай бұрын

@@vikdaddy it should work for all lenses

@kentjoosten8149 4 ай бұрын

Good explanation and shoot Bobby. One thing you might mention is the interaction of two of the PHOTO SHOOTING menu items: "AF/MF subject detection options" sets up the auto/people/animal/vehicle/airplane/off option FOR BOTH AF AND MF. As long as this is not off, the "MF subject detection area" sets up All/Wide(L)/Wide(S)/off FOR MF ONLY. The AF-area mode is not affected.

@btonelli 3 ай бұрын

Thanks! Yes good point 👍

@jackkim2522 5 ай бұрын

Do you get the green box on eye when in focus for manual focus lens? I use voigtlander 50mm apo m mount lens with adapter for my zf, but I never got the green box for things in focus. it is more like you get the white boxes following an eye, and when I press magnification, It is zoomed right to that eye or whatever it is tracking as white boxes. Please confirm if there is any option in menu where I can turn on green box option.

@btonelli 4 ай бұрын

Yes you are correct. The green box only shows with lenses that have electronic connections. But you still get subject detection like you experienced.

@a2roland 2 ай бұрын

Awesome! Thank You!!

@btonelli 2 ай бұрын

Thanks for watching

@stefannantz 8 ай бұрын

Woul love the to see the Voigtländer 50mm f1 on it

@btonelli 8 ай бұрын

They didn’t have one to test for this at the time of recording

@yesrbiradar 8 ай бұрын

I already preordered it and am eagerly waiting to shoot with my favorite Nikon 105mm F2.8 and Voightlander 58mm 1.4mm .

@btonelli 8 ай бұрын

Great lenses!

@mannurkumar 8 ай бұрын

how much it cost with grip?

@btonelli 8 ай бұрын

@@mannurkumar grip isn’t that much. Probably 100 plus USD

@yesrbiradar 8 ай бұрын

*Nikon 105mm F2.5 and Voightlander 58mm F1.4

@bcheung2943 7 ай бұрын

What brand of adapters you use for the Nikon F mount and leica M mount to the Zf body ?

@btonelli 7 ай бұрын

7 artisans close focusing adapter

@Fyr042 Ай бұрын

Thx for this usefull video.

@btonelli Ай бұрын

Thanks for watching

@stefaanr8792 7 ай бұрын

Nice review, thank you for sharing. I'm a Df shooter with some great ai and ai-s lenses. I'm trying to figure out, if an upgrade to the Zf is something for me. Shooting wide open with my 50 mm 1.2 ai-s with the assistance of focus peek seems very tempting, watching you do this so quickly. The only concern I have is the plastic FTZ ring. There you have a vintage looking camera (even more so than the Df), you pair it with vintage ai lenses, but between them is a plastic tube. Maybe irrelevant in a photographic point of view, but if Nikon or some third party could work around that, I would rush to the camera store...

@btonelli 7 ай бұрын

Granted the ftz adapter isn’t going to win the best looking adapter contest thus far but it’s robust and works well. I agree aesthetically it takes away from the camera, but if the increased popularity of the Zf holds I’m sure they will come out with something that matches better and hopefully smaller

@6hr0n05 8 ай бұрын

I have an otus 55 and a d850, I find that at 1.4 my portraits can be sometimes off unless I take the time to really double check my focus. When using the ZF do you find a difference in speed when manually focusing ? Sometimes i miss the shot on my current setup

@btonelli 8 ай бұрын

Yes I do. Especially with the eye detection and focus peaking. All I need to do it zoom into the eye and nail focus. This will be a big step for you from the D850 for sure

@Cleverconveyence 8 ай бұрын

@@btonelliWhat button do you use to activate zooming in for critical focus?

@6hr0n05 8 ай бұрын

thanks@@btonelli

@btonelli 8 ай бұрын

I assigned the AE-L AF-L button or I can use the dedicated magnification button on the lower back part of the Zf

@RobertFalconer1967 8 ай бұрын

Hey Bobby - Finally laid hands on the Zf yesterday. A question even the Nikon rep couldn't seem to answer, however, was can you control the aperture from the manual aperture ring on the Voigtländer Z mount lenses, while in Aperture Priority or Manual mode? You spent lots of time with that combo, so I assume you'd have figured that out pretty quick.

@vikdaddy 8 ай бұрын

Of course you can, how else would you

@btonelli 8 ай бұрын

Yes you can control the aperture ring on the Voigtlander in both modes.

@RobertFalconer1967 8 ай бұрын

@@btonelli Cheers. Nikon themselves seem a bit confused about this, hence my question.

@RobertFalconer1967 8 ай бұрын

@@vikdaddy I asked the question because even Nikon seem confused about this question. Here is an exact quote from a Nikon tech rep in North America when asked the same question > "The Z f reacts to manual focus lenses the same way as any other Z body. So you have to lock the aperture ring and use the command dials on the body."

@vikdaddy 8 ай бұрын

But they're Voigtlander lenses with an aperture ring made for Z mount?! @@RobertFalconer1967

@ortonphotoart5770 8 ай бұрын

Nice video! Punching in on the eye is a great feature. I'm thinking of getting the tech-art tzm-2 AF adaptor for manual lenses. Combined with the zf AI tracking it could be amazing!

@btonelli 8 ай бұрын

Indeed! I would love to try the techart with this camera. I’ll see if I can source an adapter

@jliang70 2 ай бұрын

@@btonelli I use the Sony version of the techart and eye autofocus does work but it can mess up focusing sometimes, manual focus is a bit more reliable in most cases. Light Lens lab Elcan for example I had to reset it a few times before the motor on the adapter can kick in to start focusing.

@btonelli 2 ай бұрын

@@jliang70yeah the adapters aren’t 100 percent. I see this on the m to Z version as well. I find when I’m normal distances turn the lens focus ring to infinity and it will lock on. Close up I turn it to minimal focus and the adapter will work. So it varies a bit in terms of how to maximise it

@bubuli 8 ай бұрын

I hope this feature makes its way to the Z8/Z9. I use manual focus a lot and this feature would make MF even less tedious (in conjunction with focus peaking).

@btonelli 8 ай бұрын

I agree. In time it probably will but having it exclusive to the Zf does give it some advantages

@dicekolev5360 8 ай бұрын

My z6ii already has this feature. Not sure if that's normal as nobody said it will be on z6ii 😅

@kennethlavalle1608 Ай бұрын

Bobby I just ordered a Zf to use with my 58mm F1.2 Noct. You always gravitate toward the exact glass that I would pick. Interesting.

@btonelli Ай бұрын

Awesome! Great combination

@lamaludwig1470 6 ай бұрын

nice Campa shirt!

@btonelli 6 ай бұрын

Thanks!

@stefan_becker 7 ай бұрын

I think there's the option that turns the focus point green if the focus is correctl. I like this Zf feature a lot. However it seems to work only for lenses with electrical contacts and while you half depress the shutter...?

@btonelli 7 ай бұрын

Actually it works with any adapter and lens as this is from the sensor and processor not the lens in terms of subject detection

@johnybravo7034 7 ай бұрын

@@btonelliNope. You only get the green confirmation box with lenses that can communicate with the camera. No green confirmation box with any of my old Minolta lenses adapted with non cpu adapter.

@okyeabuddyguy 4 ай бұрын

Do you use the green focus confirmation dot a lot Bobby? That reminds me of manual focusing with DSLRs and it's a way to quickly focus on subjects without focus peaking, focus zooming or subject detection. It might not be perfect for critical focus but at least you'll be in the ball park. Nikon needs to release a 75mm F2 or F2.8 compact retro style autofocus lens to complete the 28/40/75 trilogy. A nice compact retro longer option would be amazing and really sell me on this kit. Unfortunately there's no chipped third party 75mm lens for Z mount yet.

@btonelli 3 ай бұрын

I find the green box sometimes a bit difficult to use especially wide open on the lens. One slight movement it goes back to red. So I tend to rely more on focus peaking and my eyes

@ghas4151 8 ай бұрын

That eye manual focus is genius!

@btonelli 8 ай бұрын

Agree. More camera manufacturers should add this in

@sergeynikitin9321 7 ай бұрын

@@btonelliI sent such feature request to Leica for the SL2-S camera 2 years ago. Not such feature to date.

@ALWH1314 7 ай бұрын

Interesting, I use Leica, Hasselblad and just got this Zf, try it with Voightlander 40mm f1.2, I don’t understand how Leica or Hasselblad has better manual focus?

@btonelli 7 ай бұрын

The focus peaking is more precise. With the Zf you need to really zoom in to hit critical focus on wide aperture lenses. The other two are more exact. When it’s red or whatever color you have, the focus is dead on. With the Nikon, sometimes not quite

@gilgabo 5 ай бұрын

Does subject detection work with adapted manual focus lenses, or F-mount manual lenses only?

@btonelli 5 ай бұрын

Yes it works with any adapted lenses

@Iamtongue 8 ай бұрын

How's the eye tracking and hit rate? I doubt it's at sony's level? But do you have a gauge or a baseline? Is it more in line with Fuji's?

@northofbrandon 8 ай бұрын

Eye tracking... we're talking about manual focus here. Think Leica not Sony.

@Iamtongue 8 ай бұрын

@@northofbrandon he has a Nikon ZF so I wanna ask him about AF as well Tf. Didn’t know that was off topic.

@btonelli 8 ай бұрын

No prob at all. It’s about on par with Fujifilm, maybe slightly better? Hit rate is good too.

@btonelli 8 ай бұрын

Not off topic all good. Af is good. If you used the Z8 and Z9 it’s about on par with them.

@Iamtongue 8 ай бұрын

@@btonelli damn.. slightly better than Fuji 😭 I’ll take it thanks 🙏

@brusselssprout1 6 ай бұрын

Help needed: can you use trap focus with Z-mount Voigtlander lenses on the Zf? Tried all the recommended settings bur it keeps triggering whether in focus or not.... thanks beforehand!

@btonelli 6 ай бұрын

I’m not sure to be honest. Never tried that feature but it’s available for the Z9. Not sure about the Zf

@brusselssprout1 6 ай бұрын

@@btonelli thanks. The trap focus feature is available on the Zf but does not seem to work with chipped manual focus lenses such as the Z-mount Voigtlanders. I can get it to work by manually focusing Nikon Z AF lenses and I've seen reports showing it works with chipped M-mount adaptors (such as TTartisan 6-bit and Techart) as those adaptors mimic AF electronics (the camera thinks there is a AF lens attached). The Voigtlanders tell the camera they are MF lenses, and that short-circuits the "focus priority" AF-C and AF-S menu settings it seems (impossible to select those). If that understanding is correct, that would really be a missed opportunity for those Z-mount Voigtlander lenses. One would be better off using their M-mount versions with a chipped adaptor. I might be missing something though....?

@Touuraab 8 ай бұрын

Great video.

@btonelli 8 ай бұрын

Thank you much appreciated

@harrisjon1 Ай бұрын

Do you need an adapter or will any lense fit on to the ZF body? Thank you.

@btonelli Ай бұрын

You need an adapter

@stephanweiskorn6760 Ай бұрын

Please do a video with Meyer Optik Görlitz Lens. Can they be used? 😮

@btonelli Ай бұрын

Hi. I don’t own any of these but any manually focus lenses with an adapter can be used

@dakotaxu4792 7 күн бұрын

Just a question Bobby: do you think this camera would have been a bigger hit if it had a higher megapixel count?

@btonelli 7 күн бұрын

It’s a big hit already but yes I do think if it was higher it would be even more so

@_rhapsodist 5 ай бұрын

Does the subject detection in MF only work with lenses that have electronic contacts?

@btonelli 5 ай бұрын

Works with both

@Cleverconveyence 8 ай бұрын

This video, this video was made for me!!

@btonelli 8 ай бұрын

Haha glad you liked it. Thanks for watching

@avinashrai11141 8 ай бұрын

Noct 1.2 images look just special. Colours out of the lens has match in modern lens.

@btonelli 8 ай бұрын

Indeed. It’s a master at both wide open and stopped down

@ishan547 8 ай бұрын

Does the camera have a digital scale like fuji has for manual focus?

@btonelli 8 ай бұрын

Yes there is a scale

@pgulysse1 8 ай бұрын

Bobby, i think the #Viltrox AF lenses with aperture ring are an interesting option for a full manual experience. Hope you time to try the viltrox lenses on the #Zf and #Zfc

@btonelli 8 ай бұрын

I’ve always wanted to try Viltrox but don’t know anyone at the company to work with

@SAI_N_SAI 8 ай бұрын

Is the Lens ARTRALAB NONIKKOR-MC 35mm F1.4 (Full Frame) 1960's? So Cool Manual Focus Lens

@btonelli 8 ай бұрын

Hi! Are you referring to the vintage lens? It’s the Nikkor 58mm f1.2 Noct

@Whatreally123 8 ай бұрын

Nice. Now nust waiting for Nikon to add 35/50 pancake lenses with the retro design. Thatll complete the street kit with the 26, 28 and 40mm lenses.

@btonelli 8 ай бұрын

Agree. That would be ideal

@user-yj1zb7of1x 5 ай бұрын

I just wished it had a higher resolution sensor. Hoped it would be the Z7 sensor or even a 60+MP.

@btonelli 5 ай бұрын

Agree. Perhaps a new version will come with higher res

@sebastianmichalski5318 Ай бұрын

We need it in Z8!

@btonelli Ай бұрын

Agree

@mekore 27 күн бұрын

I'm a zf user too, just want to point out that Canon R5 also provide subject detection and focus confirmation when used with voiglander lenses

@btonelli 27 күн бұрын

Yes because it has the electronic contacts. But it doesn’t have when you don’t have the contacts

@ahabadong 3 ай бұрын

Good review.

@btonelli 3 ай бұрын

Thanks

@louis5352 8 ай бұрын

Thanks. Great real review. Not a Nikon person, but this one has me tempted. Might have to sell my XT-5 kit. Btw are you sure it has a brass top plate and not Brass-plated magnesium with a zinc top coat?

@btonelli 8 ай бұрын

It’s a really good system and will continue to grow. The XT-5 is also a great camera. Just depends on one’s needs

@FacesOfLA 8 ай бұрын

I wish you can use the 58mm 1.2 Noct at night! Like extreme low light! I think that would be a video that would go viral.

@btonelli 8 ай бұрын

I’m down to try it 👍

@Whatreally123 5 ай бұрын

Bobby, a request as you are one who responds to questions. I'm a motorcycle traveller and I was hoping Nikon launches an updated Zfc but I am also interested in the Zf. But I see that the sensor doesn't lock in place when the camera is off. As I will be spending a lot of time on the motorcycle as much as off it, I'm just worried if the sensor being lose and moving around might cause any issue. Would you be able to provide your inputs or maybe get some info from Nikon? India Nikon doesn't have anyone who can answer this for me.

@btonelli 5 ай бұрын

Hi! This is a great question. Let me ask the Singapore team and find out for you

@Whatreally123 5 ай бұрын

@@btonelli thank you. 👍 Much appreciated.

@btonelli 5 ай бұрын

Hi. Here is the response from Nikon Singapore: About your inquiry about the absence of a locking mechanism for the Nikon Z f camera image stabilization system. Nikon's main focus was to create a compact and lightweight camera body, which made it impractical to include a locking mechanism for the sensor-shift vibration reduction mechanism. Although you may feel some movement when the camera is turned off, this is normal and does not cause any negative effects or damage during travel. Our camera bodies are designed to withstand various conditions and handling situations, ensuring the durability and reliability of the image stabilization system. We appreciate your feedback and will consider it for future product developments. If you have any further questions or concerns, please let us know. Thank you for choosing Nikon. Regards Nikon Singapore Team

@Whatreally123 5 ай бұрын

@@btonelli thank you Bobby. Really appreciate you going out of your way to get this information. 👍 Can I ask what you feel about this response from Nikon? It sounds like a well rounded and safe answer from Nikon. From your experience, would you be concerned if the camera is taken out whilst travelling on very rough surfaces where there might be abrupt and intense movement? (Like a war journalist going into hostile situations in a jungle or as I had mentioned of rough roads on my motorcycle).

@btonelli 5 ай бұрын

@@Whatreally123 I think you will be fine but consider this is a prosumer camera. If you want to go to war zones etc a Z8 or Z9 may be better suited but if you want to just ride your motorcycle around and take photos the Zf is fine

@hdm-nm 8 ай бұрын

Manual focus is much easier if you assign 200% zoom to the AE/AF-L button or the video button for super fast zoom in/zoom out. // Note: Zf is 8 stops of IBIS not 7.

@btonelli 8 ай бұрын

Yes you can do 200. I also assign the the AE/AF-L Button. Actually the camera is 7 stops. 8 stops with selected lenses.

@hdm-nm 8 ай бұрын

Thank you, I missed the "up to" part in "up to 8 stops" marketing.

@btonelli 8 ай бұрын

@@hdm-nm no prob. Many reviewers say 8 stops but it’s not quite accurate

@ngterry9653 6 ай бұрын

The manual focus tracking in Nikon zf only work with Z mount lens ? how about adapted non-cpu lens ?

@btonelli 6 ай бұрын

Works with every lens.

@ngterry9653 6 ай бұрын

@btonelli Glad to hear that, but I can't find the right setting to enable the tracking though

@btonelli 6 ай бұрын

@@ngterry9653 photo shooting menu > AF/MF Suject Detection Options and MF subject Detection Area

@LarsSteenhoff 8 ай бұрын

Also would be nice if it could zoom in on half press shutter to confirm focus

@btonelli 8 ай бұрын

Not available yet but perhaps in a future firmware update? I’m sure more features will come to this camera over time

@thdbird83 8 ай бұрын

I'm not recalling clearly, but it has this kind of feature using the back screen function. so when we tap, it will zoom in to the focus box. gotta rewatch earlier rather the earliest ZF review. If no wrong it is on Ricci's KZfaq reivew.

@btonelli 8 ай бұрын

@@thdbird83 I as well. There are a lot of small features that are hidden in the quite extensive menu.

@al404 8 ай бұрын

Does this feature works with MF lens without contacts?

@btonelli 8 ай бұрын

Yes it does. Under photo shooting menu make sure your AF/MF Subject Detection Options are turned on and Also right below MF Subject Detection Area is turned on.

@nwwwbbb 7 ай бұрын

Can you make one with leica lenses or M mount lenses?

@btonelli 7 ай бұрын

I’ll try that out

@MrCopealope 8 ай бұрын

Hey Bobby, what’s your backpack?

@btonelli 8 ай бұрын

Wotoncraft Pilot 18L. I actually have a video on it : kzfaq.info/get/bejne/r5qChrhirsiqZ30.htmlsi=48iA5nvyXLwoqcA2

@stefan_becker 8 ай бұрын

The 50mm Apo Lanthar might well be the sharpest 50mm lens available for full frame at the moment(!).

@btonelli 7 ай бұрын

One of for sure. Will need to test it against the S Line 50 f1.2

@bianx817 6 ай бұрын

May ask what adapter you use with those lenses?

@btonelli 6 ай бұрын

The Nikon FTZ 2 adapter for the Nikkor Noct. For the Voigtlander these are native Z mount

@bianx817 6 ай бұрын

@@btonelli thank you! If I have voigtlanders for my Nikon film cameras (fm3a), do I use the ftz adapter too?

@johnpap9328 7 ай бұрын

Can one get that focus confirmation green box with old AIS lenses?

@btonelli 7 ай бұрын

Yes. With any manual lenses

@johnpap9328 7 ай бұрын

@@btonelli thanks man. Any particular setting? For the life of me I just cannot get it to work with any of my AI and AIS lenses adapted via a K&F damp adapter. I only got the camera yesterday and been reading through the manual as fast as I can :)

@btonelli 7 ай бұрын

@@johnpap9328 it’s a setting in the menu. Photo shooting menu - AF/MF Subject Detection Option then turn on

@johnpap9328 7 ай бұрын

@@btonelli Ah yes, I already have this turned on for all subjects. And indeed the camera detects people. But the box that appears over the eye is always white, sometimes with one or two arrows. It never turns green to confirm focus.

@btonelli 7 ай бұрын

@@johnpap9328 it’s not like the manual focus box where it turns green. When you see the white box you can zoom in and it goes directly to the eye.

@zakiradi450 8 ай бұрын

Does the Display not have sunny weather setting Iike Sony?

@btonelli 8 ай бұрын

It can go bright but even then it was a bit hard to see

@nespressoman 7 ай бұрын

I read that the Zf sometimes mis-autofocuses with Nikon's older lenses + adaptor that are not Z mount. Is this true? Am I better off just buying the Z lenses? Thank you.

@btonelli 7 ай бұрын

Hmm not sure about that. I use the FTZ adapter and no issues. Perhaps the adapter people are using isn’t good? Or user error?

@btonelli 7 ай бұрын

@@nespressoman the Z lenses are superior indeed but you can use older lenses but understand that they are older and won’t perform as good. Thanks for the kind words!

@nespressoman 7 ай бұрын

@@btonelliThank you very much.

@airdailyx 8 ай бұрын

finally, a useful review of this camera. Everybody else is just walking around with that stupid kit lens while the Nikon representative follows them around.

@btonelli 8 ай бұрын

Thanks! I had to do that as well on a previous video I made

@airdailyx 8 ай бұрын

@@btonelli well, I appreciate you circling back. The whole reason I bought this camera was to adapt it with vintage glass. Something I always hoped Fuji would deliver. But it seems they are stuck in the crop sensor realm.

@jtes1442 8 ай бұрын

I wish they had included a joystick to provide more options and customization.

@btonelli 8 ай бұрын

Yes agree but the touchscreen does work quite well

@n1ngnuo 8 ай бұрын

I own the black Zfc and I have the 26 mm pancake. I really love this combo, because it’s small and light. But I’m so tempted to get the Zf. My only concern is the weight. I’d probably order the Nikon grip from Japan and with that and a (smaller) lens you’re already at a kilo. I need to go to some demo rooms and check it out. Great review.

@btonelli 8 ай бұрын

I as well also have a black Zfc. Great looking camera. The Zf definitely has more weight to it and slightly larger but also feels good in the hand. It’s not that heavy though and fits easily in most bags. I enjoy the extra heft especially for stabilisation.

@n1ngnuo 8 ай бұрын

@@btonelli I will go to a Nikon shop soon, they have all cameras as demo units. Not sure the Zf is already available here, but will check. Really want to compare the weight. The black Zfc with the original Japanese grip is around half a kilo. And my main lens is the 26 mm or the 16-50, both very small. Now for the Zf I wish there were some small 40-50mm lenses and a compact standard zoom, but I'm afraid I will need to get the 24-120 which is quite big. The 24-70 f4 could be an option, too. Need to try out.

@Eatmeraw 8 ай бұрын

@@n1ngnuo Demo units are usually paired with the compact sized 40mm f2. Your concerns are valid if you are used to having lighter systems, the weight did put me off holding it with one hand paired with the 40mm. It's definitely on the hefty side amongst other FF mirrorless cameras. Definitely built much better than the ZFC in terms of quality and features.

@n1ngnuo 5 ай бұрын

@@btonelli I wonder, if you have the chance to test out the ZEISS Planar T* 2/50 ZM (Leica mount) with a dummy adapter (if I get one, it would be the Rayqual LM-NZ, that one makes the lens look like it's Z mount). The reason I am curious to buy this combo is, the Planar weighs 230g only, the adapter, I don't know, but I suspect around 50 g max. That's around 280 g, the Apo Lanthar is 347 g. The Planar (used), costs around 500 USD from eBay Japan. The Apo Lanthar is 899-999 USD (new), so quite more expensive. Sure, there are no contacts on the Planar, but I don't really care about exif data. The Apo probably performs better, but I think the Zeiss has great reviews, too, it could be close. Unfortunately I wasn't able to find any video reviews of the Planar on a Nikon Z camera, let alone a comparison with the Apo. If anyone can do it, I was thinking it could be you.

@walkingmeditation61 3 ай бұрын

Maybe I'll just keep my original Z6 and get Voightlander lenses ?, same sensor in a different package ! I was considering the ZF really because of the auto focus but with a manual lens I don't need to

@btonelli 3 ай бұрын

The sensor I believe is different and the processor, speed and functionality is also different. 24mp isn’t always the same sensor from one camera to another

@ofeykalakar1 8 ай бұрын

How does it do bicycle detection- nice Tshirt. Campignolo yes

@btonelli 8 ай бұрын

Unfortunately no bicycle detection. Thanks! I’m a big campy fan

@konnroi 5 ай бұрын

someone tell me why have to weight 1/3 more tha Zfc

@btonelli 5 ай бұрын

IBIS, full frame vs APSC, better build quality and more processing power

@perseuslegend8580 7 ай бұрын

@btonelli I hope you can shed some light on a delicate topic about the ZF. There's some confusion about how to clean the sensor. It seems that if the automatic cleaning doesn't get rid of the dust, you're not supposed to use any sensor cleaning kit to clean it by yourself. Nikon wants the customer to send the camera to a Nikon repair center to get the dust cleaned, which sounds like quite a stretch! Dust on the sensor is very common on mirrorless cameras. Even though this might be a policy with every other manufacturer, it's somewhat accepted that the customer, if he/she feels so, can do the cleaning by themselves. On top of that, is not clear what the right procedure would be, as with the ZF the IBIS doesn't lock off when the camera is switched off. Some say the camera has to be on when cleaning the sensor. It's all quite confusing, and a bit surprising that Nikon it making this confusion even worse. Do you have any insights on this? I would greatly appreciate it!

@btonelli 7 ай бұрын

There are sensor cleaning kits that one can purchase to clean sensors. However if someone has not done this before then best to have a professional or someone experienced to do it. I clean my own sensors but also understand how to do this. Nikon is right to be overly cautious because if someone takes a cloth and rubs the sensor too hard etc it can damage it so to alleviate such cases they recommend to send it in. Using a hand blower to a sensor is fine but again nothing too powerful. One needs to think of the less informed or careless individuals who will accidentally damage something because they think they know but don’t really. Hence Nikon’s overly cautious wording.

@perseuslegend8580 7 ай бұрын

Thanks @@btonelli ! You're right, I understand Nikon being extra cautious about this aspect. What it's not clear is whether the camera needs to be on or off during the cleaning. I assumed it should be off, but someone is saying that because the IBIS doesn't lock off, the camera needs to be on to keep the IBIS still. I'm rather confused about this last point.

@btonelli 7 ай бұрын

@@perseuslegend8580 every camera I clean I turn it off

@perseuslegend8580 7 ай бұрын

Thanks, @@btonelli , I really appreciated that you took the time to confirm!

@cryptobyt2403 6 ай бұрын

NIKON SHOULD ADD MICROPRISM like MANUAL FOCUS ASSIST AND ILL BUY THE ZF. Right now i still planned to get z7-2 next year. Im hobbyist z8 is too large for street and travel. Best suited for pro i think or backup z9 cam for pro.

@btonelli 6 ай бұрын

I hear ya but with magnification and focus peaking the need for a micro prism might not be as necessary as it was before

@cryptobyt2403 6 ай бұрын

@@btonellibut experience should be at full not half full right?

@btonelli 6 ай бұрын

@@cryptobyt2403 everyone will have their standards of what a full experience will be. I think this is a really full experience but others might not.

@jimtong 4 ай бұрын

I hope the Leica SL3 get this feature.

@btonelli 4 ай бұрын

I hope as well

@mainmain5303 8 ай бұрын

The music is good haha

@btonelli 8 ай бұрын

Thanks!!

@keithpeeples3565 8 ай бұрын

I would love to use my Nikkor 20mm f2.8 ais lens on this camera. My D780 works great with this lens even providing full matrix metering by entering non CPU lens data in the menu system. What a shame a great retro camera like this can't be paired with legendary Nikkor glass without using the ftz adapter and of course it doesn't meter properly with the ais lenses. Voigtlander might be the answer.

@btonelli 8 ай бұрын

I think you might be surprised how it performs with it. I had no issues with metering with the Noct

@keithpeeples3565 8 ай бұрын

@@btonelli l am really interested in this camera since I shot Nikon for 30 years. My D780 will display each Aperture setting correctly with my ais lenses and meter accordingly. Everything I have read about Z7ii and ftz adapter says this isn't possible with ais lenses. I am hoping it is. This would certainly help me decide. I love my Nikkor 20mm with that engraved depth of field scale.

@btonelli 8 ай бұрын

It won’t display the aperture reading but outside of that the performance is good

@pierre-yvesdebrito7666 7 ай бұрын

is the focus peaking feature available for non cpu lenses? Was the focusing experience the same with the old noct vs voigtlanders? Anything else missing besides the aperture reading in the file?

@btonelli 7 ай бұрын

@@pierre-yvesdebrito7666 yes focus peaking doesn’t have to do with the lenses. It’s the sensor