I love your videos and you have taught me a lot. I will say that you can still see the slight bump on the image as you push and pull with the Cine-Lock. It does not seem as acute or strong, but I think you can still see it in both directions. Thanks for always making quality content.

Amazing perspective! Thanks!

Great video Justin - probably the most helpful Metabones film i have ever seen.

This was a critical thinking video. Lots of Gold in this one. Thank you.

Great video Justin. I’ve never heard of a CineLock version from Metabones! My Contax/Yashica to MFT had a ton of wiggle room until I added some small pieces of white film leader tape. The wiggle is gone now but the Contax Zeiss lenses are a little too snug (but I’ll take it over the slop before - drove me crazy)! A CineLock version would have solved that issue. Good to know that this option exists.

Cool! It helped me to decide between the cine-lock and regular adapter. I’m getting the Ultra with cine-lock. 👍

Great vid! Which they made a cinelock attachment for those of us that already have the speed booster without it.

thanks.. this is very helpful.

Thank you for this video.

Thank you Justin!... I know now i need a Speedbooster Ultra for my APS-C Lenses! Greetings from Germany, Berlin

I like how you went out and found Nacho Libre to pose for your handheld test.

Hey Justin love the video.

Thank you Justin!

Budget's an issue for me, so I think I should probably go for a second hand Ultra MFT for $520 USD. But the CINE-lock feature and slightly better clarity of the BMPCC4k-specific version is appealing. But I'd have to get that new and with taxes and import costs to Australia that'd be $880 USD. What would ppl suggest?

I have the cheap micro 4/3 to EF adapter like the one you have I wish I could afford the metabones adapter

Hey thanks for this video! Do you know what metabones speedbooster would work with Mamiya 645 lenses on a BM?

Hi Justin, thx for great video like always. One question about SLR magic 25mm, did you felt little gap/movement (backlash) between BMPCC4k and lens? Its seems that you showed with metabones and lens. I have SLR 25mm and I worry about it.

Hey Justin - I love all yer videos. Great work. Quick question - what's yer favorite zoom MFT lens for the BMPCC4K at the moment under say fifteen hundred bucks? Merci.

hey, What speedster should i get for the Black magic studio Camera 4K Pro ? the one that came out last year? I'm searching youtube and not many or any videos on that topic just yet.

So you're saying a 35mm lens with a XL booster shooting 4k DCI will achieve close to super35? And what's the crop factor for 4k 60fps?

why there is no vignette between aps-c lens (crop 1.6) and ultra booster (crop 1.4) as aps lens is smaller than xl lens ?

but is better the 4k blackmagic 4k or 6k? I mean the 6k doesn't have it but ef mount?

I got a BMPCC 4K with a metabonex 0,64x and a SIGMA 18-35MM F/1.8 DC HSM ART Canon lens and it gives too much vignette, would the 0,71 fix this or should I just buy a different lens that fits better with the 0,64x? Thanks in advance

Great video. Thanks for the in-depth look. What is the drawback or formula of using a full frame on the ultra? Is it basically cropping the full frame lens? Another word you get a narrower FOV?

How do you lut the pl mount on the 4k

Could you still hookup the nucleus nano to the iris gear rings on your zeiss lenses while using the cinelock speedbooster?

I hear people use something like a smallrig lens support to lift the lens just a tad (to make it stay up) and you don't get those "hiccups" when you pull focus with a follow focus like in the video in both scenarios.

Can you please do a test of sharpness between micro 4/3 prime cine lens and the speedbooster + sigma 15-35 1.8 or 50-100 1.8 Shooting 4k DCI Q0 i will wait for it and hope you get the time for the video.

Hi. I know you are using Zeiss Distagon T* ZF.2 lenses on BMPCC4k. Ever used the ZE version? I’m wondering whether bmpcc4k, GH series, with metabones/ viltrox handles the electronic aperture on the EF mounted classic zeiss lenses. The ZE versions are considerably less expensive than Nikon mounts. Learning a lot from your channel! Thanks.

Is there a mft to mft speed booster?

Be careful with the XL Cine. I was not able to get recent EF lenses to mount with it (Canon 16-35, Tamron 24-70 G2) for example. While my Rokinon Cine DS 85mm mounted no problem. A friend of mine had the same issue using his XL Cine and Canon photo lenses (Canon 24-70 and 70-200). We both ended up returning the XL Cine for the regular XL. I think if you're using older lenses (without weather sealing perhaps) or cine lenses you are probably good. Also, my regular Speedbooster XL doesn't have any play with the lens connection while my Canon EF to Sony E-mount does. Kind of a crap shoot I guess

What about the Metabones made especially for the BMPCC4K? Is that any different? If so, what are the differences?

or you just put 1-2 layers of clear tape on the adapter and you'll get rid of the wiggle

They have a version of both Cine XL and ultra specifically for the bmpcc4k. Do you think the specialized version of the XL Cine will take care of that vignette? I really want the full frame look that it gives but I'm also getting a sigma 18-35 which you say works well with the ultra.

OK...So I have a question...I bought the Sigma 18-35, BMPCC 4K, and the Metabones Ultra .71. I do have vignetting until I get to about 21mm....so are you saying it would go away if I had the XL instead? I was told the opposite......so thats what I went with......Dang.......I was also told the Sigma was a full frame lens not APS-C...I am so new to this stuff I feel like I am drinking from a firehose of information and not all of it is good! Love your channel Justin. Keep the videos coming!

Metabones T Speed Booster XL; will it work on efs lenses to my og bmpcc? i just want to be able to manually focus and manually choose aperture. Will the Metabones T Speed Booster XL provide electronic communication tot the efs lens so I manually focus (efs lenses have focus electronic..not manual)

I'm looking into a cinelock but I hear it's almost impossible to lock a weather sealed Canon 24-70 on those. Any input?

For the contax zeiss lenses was the rear protruding aperture element removed or did it not interfere with your Metabones?

Justin, it's like you knew, lol. I'm gonna get the Sigma 18 - 35mm art and this cine ultra adapter too. If you use black pro mist on sigma, do you think it becomes less corporate? ;-)

These metabones adapters are interesting...but it's also interesting how you notice that there are NO feature films were shot using metabones adapters...because they reduce image quality....

Answering a lot of questions for a hard headed canon shooter realizing canon isn't the #1 now and wanting to switch to BM!

So i ordered the cine .64 but could not find any info on compatibility with EF-S lenses. It says may be compatible but require modification to EF-S lenses. What modification are they talking about? Any idea? I have ef and efs but it be great to know if its possible at all. Thanks! Without u i would have purchased the non cine version.

Which locking Metabones gives the widest angle of view...the 0.64 or 0.71?

Is there a Metabones XL Cine Lock for Nikon Lens? I looked at the website and didn't see it.

In what situation is Ultra better than XL? I understand the different crop factors and apertures, but since they cost the same in my camera store, I wonder how the Ultra could ever be a better decision than the XL...

Cheers mate...not a lot of info about these out there...much appreciated.

I have the original bmpcc. I see there are speed booster 0.58, 0.64 and 0.71. I also have another camera that recommends using the 0.71. my question is could I just buy the 0.71 to use on both cameras?

So, I have a GH5 and GH5s with x2 Speedboosters Ultra. I was always under the impression that the Ultra was the one to go for rather than the XL. I guess I was wrong.

I've recently had a hard time convincing my cousin to get the Metabones instead of Viltrox and he won't do it. The amount of KZfaqrs claiming the Viltrox is comparable is sad because from my tests, Metabones obliterated the competition in every single important category to me.

Would you still use the XL with Sigma 13-35?

So there’s no vignetting on sigma 18-35 when using the ultra?

what is a dummy adapter ?

So it wiggles slightly even if you get cine lock version...?

I have one of those other 0.71 boosters ($100?). It’s actually not bad at all. Better machined than my sloppy metabones dummy adapter. For my bmpcc4k do you think it’s worthwhile to spend $500 on the metabones 0.64xl vs just putting that towards a larger sensor camera later? I’m using full frame vintage lenses as well as Lensbaby twist, velvet and others. More importantly to get close to full frame coverage to utilize the character of the Lensbaby and vintage Soviet lenses. Thoughts?

why not 0.58x Speed Booster SUPER16?

Do my eyes deceive me? I swear the Cine T still has vertical wiggle when you pull focus.

I am fine with my Viltrox MII. Works just perfectly on my P4K. I did not want to spend 4x the amount, specially for a MFT mount which might die here soon in the future. I do however have the same little wiggle. Does anybody know if there is a way of "fixing" it? Maybe tape or something so it can fit snugger?

I just saw the review that cine lock version for BMPCC4k won't work with the lenses that have weather sealing gaskets. Does your metabones cine lock version work with weather sealed lenses. Here's the link for the review that I mentioned. kzfaq.info/get/bejne/ap1getObyLvdlKs.html Im thinking of getting this one so please help me out with this. Thank you as always!!

Hands in the face. Do you realize, the more you wave your hands, the less people listen to you?