What are your thoughts one this?? Also do you know any cooled camera with good NIR sensitivity? Please let me know!

Please, keep up the HONESTY factor: which is the sole reason I have subscribed and watch. I am and have deleted watching OTHER PAID by the manufacturers STOOGES, who do nothing but support the manufacturers who pay them. I wish that KZfaq would ban these STOOGES - it's just not good for the individual and it's not a good omen for KZfaq to keep these STOOGES who do not tell us the truth. Even if KZfaq will not ban these paid STOOGES, then at least stop paying them. They are SCAMMERS and help no one. Great work Mr. Culv. I'm watching Sir.

Always love your work. Thank you for sharing this!!!

Cuiv, your informed enthusiasm is addicting--and so much fun!

Interesting video Cuiv! I like the tip of taking the Luminance layer. Hadn’t thought of that. I’ve been using the L-Pro & L-Extreme on a few galaxies now with some good results. I’m using the 533MC Pro that’s pretty good in IR. Cheers!

Thanks for the video. I'm getting back into the hobby, and have had IDAS LPS (P2, V4) and UIBAR filters for years. The new GNB filter is such a simple yet clever idea.

Fascinating and fun! Being a novice just starting to tackle the various complex astrophotography learning curves, I have nothing technical to contribute. However, your side-by-side demonstration very clearly shows what good this IDAS filter can truly do in light-polluted skies as extreme as the sky over Tokyo. Your straightforward presentations are extremely interesting and helpful, as well as entertaining. Like a good teacher, you provide good motivation and incentive for me to explore this hobby more seriously, and be armed with more useful knowledge along the way. Thank you very much! Happy New Year!

Hmmm...I might need one of those. Well done Cuiv!!

I absolutely love that adrenaline rush of stretching a new image and seeing what comes out. It's one of the things that got me so addicted to astro photography in the first place. Glad to see that smiling geek face lighting up while you were stretching your galaxy images! Very awesome comparison!! I live in a Bortle 8 and always have an issue with alot of light pollution and gradients, so I know the struggle, especially with galaxies, where you don't really want to use a filter that's designed for mostly Ha and Oiii. It's almost impossible for me to cut out the light pollution when I go straight broadband for galaxies.

Great review! Now I am going to have to get a GNB filter to augment my LPS-D3 in the B7 skies of coastal Southern California.

IDAS GNB as Luminance... that's brilliant! It's what I needed to make broadband less painful, and I'm on mono. Thx Cuiv!

I've used the Astronomik ProPlanet 642 BP IR-pass filter with a mono camera from central London to image galaxies. It's a simple bandpass 642 to 842 nm. With an APO refractor, I get quite bloated stars, and I think it's because the refractors are not designed to operate in the IR (therefore spherical aberration). Situation is presumably better the more reflective elements and fewer refractive elements. You could use this for L then go back and add some narrowband for colour.

Cuiv! Thanks for all the great videos. :) You REALLY need a SkyShed POD-S XL5 on that rooftop! CS!

Great stuff mate!! Super impressive result, I'm looking forwards to giving this a go myself as I've just received one of these for testing too :-D I'm going to try it with the Player One Uranus-C (imx585) which should be a great match! :-D Merry Christmas mate!

That is impressive! I find myself moving more to mono imaging these days, but I can't believe what you got with 2x 34 minute integrations from the city, no less.. Great video! Hope you had a great holiday.

Very cool!

Thanks! Glad to finally see a “Thanks” button here-I owe you not only for this great video but many more.

My mind is blown. Very cool review :)

It's nice to see you so excited once again. And I was thinking the same thing. That we are heading into galaxy season. But I do not think my QHY268C is sensitive deep into the infrared. But it is a nice filter. I live in a Bortle class 5 area so it's not so bad for me. The moon is my biggest challenge most of the time. ;o)

Impressive images! And using a planetary camera! I think that svbony has to be great for EAA

That’s awesome, you got better results than me with a dslr and 7h with SVBONY CLS filter from Orlando FL Bortle 8-9 sky! Now I want it too!

As someone who owns, and uses, the NGS1 (lps d3) from downtown Copenhagen, that was super interesting. A bit sad also because damn, that new GNB filter is just like magic 😂 gonna have to get my hands on that at some point! Great video!

I totally agree with the quality of the IDAS filters. I just completed the set of narrowband filters in the UHS spec. Paired with the RASA 8 and ZWO ASI533MM pro I’m getting good results. Really want them to produce LRGB as I think they are as good as Chroma which I use on my 9.25 EHD.

Cuiv The HAPPY GEEK!!

HI Cuiv: so I ordered a coffee cup and T shirt just now for my self ! keep up the great work! JOHN

That's awesome, Cuiv! Svbony is my number one choice for astrogadgets because it's cost-effective values and gear. You should review some more! Svbony is the most costumer friendly and really close to costumers

Interesting filter. But I’m not sure I’d want to shoot galaxies with it, even with cleaner signal separation in white zones. Just tossing sooo much of those lovely colors and signal from the broadband of the galaxy and pulling so much more signal in from infrared, with the corresponding bloat and softening of detail. Probably also extra problematic for refractive optics. (I bet that new BlurX software works wonders with it!) But a fascinating idea. I can easily picture people really appreciating it.

Fun filter indeed. Due to the extreme light pollution in the middle of Seoul, I tend to test image my galaxies in infrared using Antlia's 685nm IR pass filter with my Touptek IMX571 camera. Despite it being not very sensitive in the NIR, the images captured in infrared light is much cleaner (less noise and more detail) with somewhat bloated stars. Compared to the regular Luminance filters, the near infrared images tend to have some differences in the details such as the dust lane and the Ha nebulosities are comepletely missing (due to it not being captured in NIR, obviously..). I think that being able to capture both the visible and NIR light at the same time and using it as the luminance by capturing it in mono cams can turn out quite amazing. I may as well purchase the GNB filter for this use... Oh, and by the way, the older CMOSs and CCDs tend to have higher sensitivity near the Ha region when compared to its sensitivity in green and blue region, and thus have high sensitivity in the infrared region (although the 'absolute' quantum efficiencies can be quite disappointing when compared with more Oiii concentrated modern CMOS sensors). I believe the NIR sensitive sensors are mainly intended for small security cameras, and are usually very small. But of course, there's ZWO or QHY's sueprexpensive cameras with high IR sensitivity intended for scientific use...

Well, better contrast is great, especially from inside a city. But for OSC plus one filter, I would prefer not to change to a second. I abandoned the L-Pro since it would suck all the blue away from galaxies in my Bortle 7. So I would hope the colors come through with a different camera. Thanks Cuiv!

Awesome Video Cuiv! Do you think that adding the GNB filter in place of a Luminance filter for Mono broadband imaging in a white zone would give better results than clear glass, full band filters? Just for Luminance. My RGB frames are manageable post processing, but I would love to enhance my luminance a little more.

Thanks for another great review! I have the IDAS LPS-D3 and IDAS NBZ. I've been working on combining the data a number of different ways on this same target - M33. Your extract and LRGB Combine process worked just as well as what I've been trying, only WAY faster! Thanks for that! I do have a question about the GNB filter though. Do you think that it's good on its own, or should it be used in combination with the D3 (LPro, etc..) filter? Thanks!

Very VERY jealous of the accurate tracking performance see in this video

Very impressive. Will be interesting to see which cooled camera you end up with. CS!

The PlayerOne Uranus C camera uses the 585 with a cooling fan that's non TEC and works great since this chip really doesn't need much cooling being amp glow free. It works great for me and can't wait to try the new IDAS filter with it.

Wow - thanks for putting this demo together for us! I wonder how it would do at f/2?

Why do you keep making me spend money like this!! LOL!!! Merci Cuiv!

WOW!! Maybe I will have to try this filter. Or duplicate this somehow with a mono camera.

I'm close to Montreal. I hadn't researched much on filters for galaxies. I'll have to get them both.

Cuiv, there might be a QHY camera I saw (in US online store) which was advertised as high sensitivity to IR and it is cooled. It is also not cheap and it's a small sensor. (2 min. later)- Nevermind, it's a planetary uncooled camera - QHY5III462

Hi Cuiv. Wonderfully informative video! I, however, can't find this filter anywhere. Is it out yet? I need a 2 inch version. Thanks!

this is mind blowing! and ingenious to move to near IR. i am totally sold. i join you on the quest to find a cooled camera with NIR sensitivity. please do let us know what you have found so far... this filter is awesome.

Cuiv, Thanks for all the fabulous videos. After seeing the video I bought an idas GNB and paired it with an asi585mc. It goes gather light well in my bortle 8 yard, but my star bloat really discouraging. Wondering if you are experiencing the same? Lots of online comment say add an ir/cut filter, but doesnt that kind of defeat the purpose? Any suggesting to improve the image quality would be awesome.

Rising Cam sells a cooled IMX428/432 camera(same sensor basically, one is permanently binned x2) that has around 55-60% QE at 800nm compared to the 40% of the IMX571. I would still opt to use the 571 between these as its a larger sensor and maybe a bit less noisy. Player one sells the Uranus-C(IMX585, 80%QE @800nm) and an additional bolt-on cooler module for that. Its probably not going to be like a proper cooled camera but i wager its a lot better than the 40% of the 571 anyway. The reason you dont have colours in IR beyond 800nm is that most if not all bayer matrix color filters turn completely transparent at this point and all 3 colors have the same QE. Which of course means you cant distinguish them from each other and so its only useful as luminance.

Thanks! As I shoot the Leo Triplet from my Bortle 9 skies I’m wondering if there’s a cure-and you found it. Thanks once again for all you’ve taught me.

Hi Cuiv! It funny you created this video just as I was planning on imaging galaxies in NIR as a luminance LOL. I almost actually ordered a rare QHY462C which has a great NIR but I didn't like the resolution being 1080P so I cancelled the order. I was thinking the IMX571 actually does have some NIR but really low. The IMX585 is pretty good but the IMX462 and IMX678 are actually the best in NIR. Darn I just sent back a ASI678MC as it had a lot of blotchy Bayer noise that I could not remove even with aggressive dithering but it had 2micron pixels perfect for galaxies but the well depth was really low so I would have to take a lot of short exposures😞 It is cheap too! Darn, I think I need to hurry up and buy it again now that it is on sale and play with NIR filters until this GNB filter comes out. Or should I just get the IMX585C since it has a QE of over 90%! Oh no the kit rabbit hole has been re-opened just in time to pay off Christmas debt! LOL. Thanks for the video and Clear Skies and Happy New Year!

Ciao! Very interesting video! Did you test the maximum exposure time you can reach with the GNB filter? I live in a very light polluted city (Milan, Italy) and I looking for a solution for galaxies… (for nebula I use L-Extreme thanks to your videos!)

Cuiv- love your videos! Is this for sale yet? Teleskop Express does not list it

Excellent video Cuiv. What a coincidence, I got an IDAS LPS-D3 filter for Christmas!. The logic behind my purchasing was to try to improve contrast on dim objects in my light polluted area, but mainly for videoastronomy purposes with my ASI533 MC PRO (I just don't have the time for processing). Any tips for me, please?

I live in a similar light pollution area. If you can get a cooled camera, I'm curious what it would look like with no filter, just so we can see how well these filters make a difference. (i'm just getting started in AP)

I found some graphs of the IMX571 that dont have everything pass 700nm omitted and it looks like it has 30-40% quantum efficiency after 800nm vs the imx585 which has 50% quantum efficiency after 800nm. So if you have a IMX571 camera that doesn't have a UVIR cut window and has a AR window, you can purchase a filter that passes only pass 800nm to see if it has the same effect just lesser so. It looks like that is how the IDAS GNB is using the 800nm band so this so it may work with the IMX571. I just ordered a 800nm 2" filter for my QHY268C so we will see if this works or not. My results from the QHY5III585C have been interesting but it has been cloudy and raining here. Cant wait to see if I can see stars and planets during the day and galaxies at night 😀

I have the ZWO version of the IMX585 camera, but some of the specs are slightly different. It does go into the infrared, but not nearly as much as the SVbony version does. It's interesting to see how different manufacturers take different approaches with the same sensor. I'm on the lookout for a "galaxy filter" myself, but more to reduce star bloat from nearby stars than anything. I've been told that a light pollution filter might do it, and someone else suggested a UV/IR filter, but seeing how the IR-pass improves the images in your video here I'm even more confused. And I'm also thinking that any filter which reduces star bloat would probably make galaxies dimmer too, because they are full of stars.. Of course it might just be that I'm overexposing my images too, or that I'm shooting with a 600mm scope.

M33 is the perfect target for this filter. If it's good i might be interested. If you can now add some H-A data you can add star forming regions.

Cool video! Both ASI533 and 294 do not have IR cut sensor windows and are sensitive to IR. I think they should work fine with your scheme.

There is no such thing as a non-biased opinion. But... taking effort to talk about potential biases is a good thing, and learning about biases is essential in my mind, even though we know that knowing about biases doesn't change it's effect on us, it's a nasty subconscious effect. For the filter, I wonder if they didn't took the idea from the Webb trend.

Love love love your videos, but i'm finding that IR is really a benefit to clear images. I see that there used to be "IR cut filters" that give sharper images. So letting in IR I think is not a plus.

Try the ASI462MC with impressive NIR ability. Downside no TEC cooling and suffers from glow. I've been considering it with the Astronomik Pro Planet 742 filter for lunar work. Good luck experimenting.

Time to visit Chichibu.

Cuiv help please. I have IDAS NBZ, any advantage over the NBZ with the GNB? Shooting nebula and galaxies with ZWO 2600 Duo on either RASA 8 or ZWO 107 APO? Bortle 4, little light pollution here. Thanks for your help and your AWESOME video work!

Thanks for the video and testing Cuiv! Any idea how well the IDAS GNB would work with an IMX571 color sensor? I've got RisingCam IMX571 OSC, which I think is the same as your other camera.

Seeing your reaction is enough for anyone to buy it haha.

I'll have to go back and check the specs for the PlayerOne Poseidon-C and also see if Lukomatico mentioned anything in his Review . Cheers./SRK

Hi, I'm less impressed from the filter, but more from IMX585 the sensor. I have just looked at some QE charts, and this is by far the most sensitive to sensor in the IR range (I only looked at OSC cameras). I didn't find any cooled camera with this sensor, except for the Player One Uranus-C which can be coupled to an external Active Cooling System. Disclosure: I am a proud owner of a Player One Saturn-C camera and I love it! About the filter, I don't think this is good enough to use as an OSC because it is color blind in the IR range, and if used as Luminance I don't think it has any advantage over an IR-pass filter, which would be much cheaper.

I use my risingcam with good IR results. I bought it with the AR glass, not the IR cut.

I think with ir，just like webb，can see more through the air

How is the gnb at a disadvantaged when you said many led's and lit up signs are off at this later time?

Excellent comparison, couple of questions though, you stated that the Rising Cam wasn't as sensitive to near-infrared but the AR glass version does pass up to 1050nm so I wonder if that might be worth a quick test before investing in a dedicated camera? Also due to infrared light focusing at a different point would that filter degrade the finer details in a higher resolution image? Cheers for all the information you pass onto the community

I have the NBZ 48mm and love it. So far the GNB doesn’t seem to be available in this type of mount. I liked the 48mm threaded mount because it would go into drop-in filter carrier. Looks like for ASI cameras there is a special adapter for 42mm flange which places the filter very close to sensor. I suspect this closeness is because the further the filter from the sensor, the greater the dispersion (angle per unit wavelength) of the light cone? Since this is intended to service blue to NIR, the prismatic refraction would be worse the further the filter gets from the sensor/image plane?

Teleskop doesn't seem to carry it yet. Any way to get this shipped to USA?

Can you fix the colors by splitting the RGB channels and multiplying the R by a factor to compensate for the IR sensitivity of G and B? Or by using spcc with that custom filter?

Can i use this with Nikon d5300 full spectrum mod? Soes it uave high near ir sensitivity?

Doesn't IR have more blur (unfocussed) when viewed from the ground? So i would guess pictures in IR would be not be as sharp.

I also live in a really big city, and was wondering what the best light pollution filter you have come across so far, for capturing galaxies? And how the IDAS ones compare to Optolong and others

I've always wondered about using a LP as a Luminance and then combining with RGB. Looks like it worked well

Hey Cuiv, great video as always! Although I think a better ground for comparison would be between a regular dual narrowband filter and this GNB filter. It would help me decide if it's worth the upgrade. Cheers!

I didn't see anyone, in these comments, question the efficacy of this filter with cooled color cameras like zwo asi533mc pro, or 2600mc pro? Bottom line, is it worth getting with cameras that aren't as sensitive in the IR?

Hi Cuiv, which software do you use to stack and get the 2 images that you work after. Pixinsight as well ??

I have that camera SvBONY 705C IMX585 sensor and it is the best in the market with such sensitivity to near Ir. You just need to cool it if you wish or get the Player One Uranus C with the cooler accessory.

Cuiv, how are you!? Im going to Tokyo on a Vacation Next Year, theres any good Astroshop to shop some filters or maybe a brand new telescope? :D

Hey Cuiv, I'm going back on this because I realized something : for the larger wavelength, the sensor can be an issue. Most sensors are not very responsive for these 800+ nm, mine (and yours :) ) for instance, IMX533, is at less than 30% on it. It might reduce quite a lot the usefulness of the filter.

What filter drawer do you use?

Can this be used in the dwarf2

My best Galaxy filter so far has been the baader neodymium, I would like to try this idas though, the neo mostly works so well because it’s very weak, just drops your bortle a tad while still letting starlight through

do you think this filter could be used as a substitute of both the l-pro and l-extreme? Looking at the transmission bands it seems like it could do both without too many issues. It would be a nice way to save some money by getting this one instead of the other two by optolong

Nice results, but it's not "luminance", it's NIR plus NB OIII and HII. I wonder what results you'd get using SPCC (with the correct calibration curves)? Maybe the image will turn black because there's no RGB equivalent! ;)

2 Q's: Would the IR pass on that filter cause you chromatic aberration type problems on a refractor (even if its an apo or petzval)? Also if you're going to do dual filters I wonder if you could just use an IR filter for luminance without the Ha/OIII passbands?

Hello cuiv, the svbony build dual band filter 7nm ha and oii. You can try to buy it.

Is this visible south of equator???

Cuiv, I digged in of your old posts in Cloudy Nights and you ware saying you use luminance filters in the past, So I have the Svbony CLS, UHC and now the new 7nm duoband whcih I am doing a lot with it, super cheap, you shoul check it out, back to my question though, is the CLS good or shoudl I get a luminance filter? I image with a stock canon 60D, I will not invest in the IDAS for now, too expensive for me at the moment, so I am looking for the best filter to image through galaxy season that will not break the bank

I wonder if they could produce a similar filter for mono imagers? I’d assume for mono you’d just need the IR bandpass. Or would this filter also be suitable for mono to produce a luminance layer?

Hey Cuiv, where can one in the US buy this filter mounted? Thanks 😊

Sort of an embarrassing question for someone who owns several dedicated Astro cameras and scopes. I've never actually known what the reason for the fans I hear about people using. What is the deal with cooling of the cameras? Is it environment related? I sort of assumed because Astrophotography is done during the night isn't it cold already except for maybe a few really exceptionally hot Summer nights. Or is it strictly just for trying to keep the bare minimum noise at the sensor? ...and not for over-heating prevention. I've never put any active cooling on my cameras...and have sort of been doing the opposite and keeping them inside and warm until a few minutes before use because I've been nervous the freezing nighttime temperatures might sieze up the shutter or something. Have I been wasting my time keeping things out of the freezing cold...and the cold temperatures are actually a good thing for the end resulting image?

How do youbthink this would work with an 80mm refractor at f/4,.8? I have a full spectrum camera that could benefit.

Great post! Too bad it is not available in the US. Also, even though it says it's available at Teleskop Service, it does not appear on their website.👍👍👍👍

After watching this video I was quite frustrated. It seems IDAS already knows my secret... using IR filters to take pictures of galaxies.... Well, JWT also seems to be aware of that. Dammm!!!. IR photography in a light polluted night is something magic. Most of lightening, specially LED disappear, as they have a narrow spectral emissivity, and only the ones with incandescen resistance (halogen and conventional bulbs), mercury and sodium lights can be seen. In order to take these pictures one needs an homogeneous IR filter and a camera with high IR sensitivity. Cheaper than IDAS filters are very easy to find. Planetary filters can do the job, but I suspect that the IR photometric filter should be the best choice. On the other hand, the result Cuiv has obtained is so good because the singular spectral response of the sensor IMX585. If you pay attention to it, this sensor can be used as an ordinary RGB one, with a UV/IR filter, and as monochrome camera at the IR with double resolution, due to the fact that the Bayer matrix does not work at the IR and the four CMOS detector receive the same amount of light. Personally, I bought a Player One Uranus C, with this same sensor as I saw the spectral curves to be used for IR or RGB camera.

Commenting before watching. This is going to cost me money, isn't it 😒 😅

Their distribution is severely limited to one outlet in Germany.

Cheaper combo : Dual band plus IR pass ?

I don't see a dealer in the US yet. Know of any?

I don’t think that they are better than other filters to a degree that merits the large difference in price.

Interesting, I actually find the non filtered image more appealing…?