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Nisi 16mm f2.8 for GFX / XCD

  
 
thrice
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p.2 #1Nisi 16mm f2.8 for GFX / XCD
Good info! Annoying to have to buy into a proprietary format. If I buy this lens I might look into making a jetmag bayonet to M95 adapter. 95mm filters aren't cheap mind you.

tsdevine wrote:
One more thing that I just realized. The included JetMag Pro 95mm adapter is a bayonet mount, it's not screw-in. So I imagine it can sit more shallow than a conventional 95mm magnetic screw-in adapter.

So that's a new wrinkle. If I do buy a filter system, and it's not the JetMag Pro, I think I should test the magnetic adapter first to make sure it doesn't vignette. If I buy the JetMag Pro, I don't know if I can stack filters. I sent a message to NiSi, will report back when I get a response.

Note: NiSi US responded and said
...Show more →
Jul 28, 2026 at 04:40 PM
_Refraction
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p.2 #2Nisi 16mm f2.8 for GFX / XCD
tsdevine wrote:
I have to use it more to form a strong opinion, I haven't shot it wide open or at f/4 yet. But most of my shooting is more stopped down. I am a little bummed out about the filter situation, but I know even the GF20-35 needs a decently thin filter. So given this is wider, it's not a huge surprise I guess. Just not really looking into buying a larger filter system, although at some point I probably will.

So I'm keeping it, although it will be a sparingly used lens. I'm not sure it's much wider than my Sigma
...Show more →

Just wanted to chip in here to thank you for sharing your initial thoughts. Would be great to hear more as you get a chance to test the lens out. I've thought for some time that an ultrawide was missing in the GF range, and I've got a trip to dark sky reserve coming up too so this lens is tempting.

For the 95mm filter - am I right in thinking that 95mm screw in filters aren't supported, only a NiSi proprietary magnetic mount? I was thinking of picking up a 95mm screw in CPL since I have a couple of other 95mm lenses anyway, but I'm less keen about being locked into NiSi and having to buy a NiSi adapter for my existing lenses.
Jul 29, 2026 at 10:42 AM
tsdevine
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p.2 #3Nisi 16mm f2.8 for GFX / XCD
_Refraction wrote:
tsdevine wroteI have to use it more to form a strong opinion, I haven't shot it wide open or at f/4 yet. But most of my shooting is more stopped down. I am a little bummed out about the filter situation, but I know even the GF20-35 needs a decently thin filter. So given this is wider, it's not a huge surprise I guess. Just not really looking into buying a larger filter system, although at some point I probably will.

So I'm keeping it, although it will be a sparingly used lens. I'm not sure it's much wider than my Sigma 14-24 though, but it's noticeably wider than the GF20-35.

Sorry, not much help here yet, just more initial opinions.
Just wanted to chip in here to thank you for sharing your initial thoughts. Would be great to hear more as you get a chance to test the lens out. I've thought for some time that an ultrawide was missing in the GF range, and I've got a trip to dark sky reserve coming up too so this lens is tempting.

For the 95mm filter - am I right in thinking that 95mm screw in filters aren't supported, only a NiSi proprietary magnetic mount? I was thinking of picking up a 95mm screw in CPL since I have a couple
...Show more →

I suspect you could use an 82mm to 95mm step up ring with at least one 95mm filter and be okay, but I don't know for sure. I don't have an 82/95 step up ring. I do have a 95mm filter though, so I guess if I picked up a step up ring I could try it. But most likely I'll stick with magnetic filters, but I probably won't go the NiSi route on that.
Jul 29, 2026 at 11:17 AM
SGinNorcal
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p.2 #4Nisi 16mm f2.8 for GFX / XCD
tsdevine wrote:
_Refraction wrote
tsdevine wroteI have to use it more to form a strong opinion, I haven't shot it wide open or at f/4 yet. But most of my shooting is more stopped down. I am a little bummed out about the filter situation, but I know even the GF20-35 needs a decently thin filter. So given this is wider, it's not a huge surprise I guess. Just not really looking into buying a larger filter system, although at some point I probably will.

So I'm keeping it, although it will be a sparingly used lens. I'm not sure it's much wider than my Sigma 14-24 though, but it's noticeably wider than the GF20-35.

Sorry, not much help here yet, just more initial opinions.
Just wanted to chip in here to thank you for sharing your initial thoughts. Would be great to hear more as you get a chance to test the lens out. I've thought for some time that an ultrawide was missing in the GF range, and I've got a trip to dark sky reserve coming up too so this lens is tempting.

For the 95mm filter - am I right in thinking that 95mm screw in filters aren't supported, only a NiSi proprietary magnetic mount? I was thinking of picking up a 95mm screw in CPL since I have a couple of other 95mm lenses anyway, but I'm less keen about being locked into NiSi and having to buy a NiSi adapter for my existing lenses.
I suspect you could use an 82mm to 95mm step up ring with at least one 95mm filter and be okay, but I don't know for sure. I don't have an 82/95 step up ring. I do have a 95mm filter though, so I guess if I picked up a step up ring I could try it. But most likely I'll stick with magnetic filters, but I probably won't go the NiSi route on that.


I don't know, if it vignettes with a Kase inlaid ring or a screw in filter, its seems that anything screwed in there would vignette. I compared the inlaid ring to a step up ring and its actually thinner. It makes me kind of wonder why they bothered with threads at all.
Jul 29, 2026 at 11:39 AM
tsdevine
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p.2 #5Nisi 16mm f2.8 for GFX / XCD
SGinNorcal wrote:
tsdevine wrote
_Refraction wrote
tsdevine wroteI have to use it more to form a strong opinion, I haven't shot it wide open or at f/4 yet. But most of my shooting is more stopped down. I am a little bummed out about the filter situation, but I know even the GF20-35 needs a decently thin filter. So given this is wider, it's not a huge surprise I guess. Just not really looking into buying a larger filter system, although at some point I probably will.

So I'm keeping it, although it will be a sparingly used lens. I'm not sure it's much wider than my Sigma 14-24 though, but it's noticeably wider than the GF20-35.

Sorry, not much help here yet, just more initial opinions.
Just wanted to chip in here to thank you for sharing your initial thoughts. Would be great to hear more as you get a chance to test the lens out. I've thought for some time that an ultrawide was missing in the GF range, and I've got a trip to dark sky reserve coming up too so this lens is tempting.

For the 95mm filter - am I right in thinking that 95mm screw in filters aren't supported, only a NiSi proprietary magnetic mount? I was thinking of picking up a 95mm screw in CPL since I have a couple of other 95mm lenses anyway, but I'm less keen about being locked into NiSi and having to buy a NiSi adapter for my existing lenses.
I suspect you could use an 82mm to 95mm step up ring with at least one 95mm filter and be okay, but I don't know for sure. I don't have an 82/95 step up ring. I do have a 95mm filter though, so I guess if I picked up a step up ring I could try it. But most likely I'll stick with magnetic filters, but I probably won't go the NiSi route on that.
I don't know, if it vignettes with a Kase inlaid ring or a screw in filter, its seems that anything screwed in there would vignette. I compared the inlaid ring to a step up ring and its actually thinner. It makes me kind of wonder why they bothered with threads at all.


Sorry if I maybe misrepresented earlier, it doesn't vignette with the Kase magnetic adapter alone (which is useless). It does vignette if I put a filter on the Kase magnetic adapter or on the inlaid ring (at least with a Maven magnetic filer). So my belief is that if a magnetic adapter doesn't vignette, a step up ring won't either. Agree that's not a slam dunk, so I would want to test it with a step up ring to be sure.

It actually vignettes if I hold a Maven magnetic filter against the front, naked. I didn't test if the inlaid ring alone, but I suspect testing the Kase magnetic adapter is more akin to how a step up ring would perform.

A screw in filter usually has some metal surrounding the glass to hold it in place, none of that would be there on a step up ring. The step up ring wouldn't have the threads to mount a filter like a filter does (I had a slim filter that still had front threads, not one that has no threads).

But agreed, this is all theory until tried and proven. I'll order a cheap step up ring and report back. If I plan to use a different 95mm magnetic system, I need to know whether the magnetic step up ring is going to work or not. Not sure I can 100% prove that with any old step up ring, but at least if a regular one doesn't work...I'm most likely SOL unless I buy into the NiSi system.

Edit: Hmm...or is the test where I used the 82mm Kase magnetic adapter enough to prove that a step up ring will work? Seems like the only risk is if the step up has a thicker piece of metal that fans out, or it doesn't screw in far enough to fully seat.

Edited on Jul 29, 2026 at 01:40 PM · View previous versions
Jul 29, 2026 at 11:46 AM
SGinNorcal
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p.2 #6Nisi 16mm f2.8 for GFX / XCD
Got it, Tim. Thanks for explaining.
Jul 29, 2026 at 12:07 PM
tsdevine
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p.2 #7Nisi 16mm f2.8 for GFX / XCD
So I got a cheap "Patikil" 82mm to 95mm step up ring from Amazon. I'm not doing super scientific tests here, but I didn't see any added vignetting using that step up ring while looking through the viewfinder. I then mounted a 95mm Nikon ARCREST II Protector (pretty much the same as the Kenko ZXII Protector) and again it seemed like it didn't add any vignetting. But I then took a relatively thick Hoya EVO Antistatic Protector, which did vignette. So the tolerances are probably quite tight in terms of what works and what doesn't.

So you could probably use a step up ring to 95mm and a relatively thin filter without vignetting. But I highly doubt you could stack 2 filters.

So again, if I want to use filters on this, and stick to Mavens, which I do today in 82mm......I'm still not 100% sure a 95mm setup will work. For the filters I use, Mavens gives me a single filter solution, as they have dark CPLs. If I went with NiSi, I'd need to stack filters to get a combined ND/CPL effect. NiSi says it won't vignette, but I'm not 100% I believe that.

So it's still a bit murky for me personally.

Edited on Jul 31, 2026 at 05:00 AM · View previous versions
Jul 30, 2026 at 02:17 PM
Makten
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p.2 #8Nisi 16mm f2.8 for GFX / XCD
thrice wrote:
No need to apologise, this is the most useful insight I've had into the lens so far!

Frustratingly, what I really want is a 23/2.8 which is good in IR and visible, the 23/4 has a hotspot as does the 20-35. The f/2.8 aperture is attractive but I so rarely need wider than an 18mm equiv.


Have you tried the Samyang EF 24/3.5 T/S? It's reportedly quite sharp, and not very expensive.
Or the various versions of the Canon EF 24 TS.

Not saying you will be able to shift, but unshifted they should at least cover the sensor with no problems.

Edit: I suppose you can also find reports about IR use on Canon cameras, which in that case can hint about usability on GFX in IR.
Jul 31, 2026 at 04:24 AM
tsdevine
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p.2 #9Nisi 16mm f2.8 for GFX / XCD

Okay, so the Maven 82mm to 95mm magnetic adapter vignettes, without any filter mounted. So I'm going to stick a fork in the whole question of filters. The included bayonet mount Nisi JetMag Pro 95mm is probably the only route to using filters. I mean somebody might figure out some solution, but don't assume whatever you have will work without vignetting.

The lens seems sharp for my purposes, so I'm going to keep it. Autumn is when I'd possibly be using it more, if the leaves and water cooperate. But I'll post shots when I can.
Aug 02, 2026 at 02:28 PM
thrice
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p.2 #10Nisi 16mm f2.8 for GFX / XCD
Thank you I had forgotten all about that Samyang lens.

Unfortunately it has hotspot in 850nm from f/5.6.

The Canon 24TS seems good in 720nm, will have to look for an 850nm test.

Makten wrote:
thrice wroteNo need to apologise, this is the most useful insight I've had into the lens so far!

Frustratingly, what I really want is a 23/2.8 which is good in IR and visible, the 23/4 has a hotspot as does the 20-35. The f/2.8 aperture is attractive but I so rarely need wider than an 18mm equiv.
Have you tried the Samyang EF 24/3.5 T/S? It's reportedly quite sharp, and not very expensive.
Or the various versions of the Canon EF 24 TS.

Not saying you will be able to shift, but unshifted they should at least cover the sensor with no problems.

Edit: I suppose you can also find reports about IR use on Canon cameras, which in that case can hint about usability on GFX in IR.

Aug 02, 2026 at 03:46 PM
 


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thrice
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p.2 #11Nisi 16mm f2.8 for GFX / XCD
Thank you for your investigation into this.

A bit disappointing on Nisi's behalf. They should have just made the lens 95mm or included a bayonet step up to 95mm adapter and been done with it.

tsdevine wrote:
Okay, so the Maven 82mm to 95mm magnetic adapter vignettes, without any filter mounted. So I'm going to stick a fork in the whole question of filters. The included bayonet mount Nisi JetMag Pro 95mm is probably the only route to using filters. I mean somebody might figure out some solution, but don't assume whatever you have will work without vignetting.

The lens seems sharp for my purposes, so I'm going to keep it. Autumn is when I'd possibly be using it more, if the leaves and water cooperate. But I'll post shots when I can.

Aug 02, 2026 at 03:47 PM
tsdevine
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p.2 #12Nisi 16mm f2.8 for GFX / XCD
Yeah, I'm not sold that any screw in step up to 95mm will cut it once you put a filter on it. I think the included bayonet adapter lets the front sit back further than anything that can screw in. So a bayonet adapter, like this one, but with regular threads....that might have worked for at least 1 filter or maybe 2 thin ones.

Optically it seems very good to excellent. It does not seem out of place, at least from what I've seen so far, against the GF20-35 (which I consider to be a very good lens.)

But at the end of the day, the 82mm thread are kinda of just for show it seems. It's very cylindrical, so it fits in my backpack slots very cleanly.
Aug 02, 2026 at 04:10 PM
_Refraction
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p.2 #13Nisi 16mm f2.8 for GFX / XCD
Been on the fence about this, then saw this new influencer video today (

) and thought eh, why not...ordered and will give it a good go. Haven't had an ultrawide bright prime since I retired my Samyang 14mm f/2.8 in the EF days almost 10 years ago so this will be fun.
Aug 20, 2026 at 09:54 AM
tsdevine
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p.2 #14Nisi 16mm f2.8 for GFX / XCD
BTW, I can confirm that it does seem as though you can stack 2 95mm JetMag Pro filters on the included bayonet mount magnetic adapter without vignetting. Just did some simple tests around the house. Hoping to use it out in the field this weekend.
Aug 20, 2026 at 06:11 PM
tsdevine
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p.2 #15Nisi 16mm f2.8 for GFX / XCD
Took a guess that most of these were @ f/11.

Adams Falls by Tim Devine, on Flickr


Mohawk Falls by Tim Devine, on Flickr


Forgotten Falls by Tim Devine, on Flickr


Triangle Falls by Tim Devine, on Flickr


Triangle Falls by Tim Devine, on Flickr



Edited on Aug 24, 2026 at 02:56 PM · View previous versions
Aug 23, 2026 at 08:04 PM
tsdevine
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p.2 #17Nisi 16mm f2.8 for GFX / XCD
thrice wrote:
Very dramatic perspective! I particularly like the first one.

tsdevine wroteTook a guess that most of these were @ f/11.

https://live.staticflickr.com/65535/55484325865_bcd03a8029_h.jpg
Adams Falls by Tim Devine, on Flickr

https://live.staticflickr.com/65535/55484108864_9705daea87_h.jpg
Mohawk Falls by Tim Devine, on Flickr

https://live.staticflickr.com/65535/55482945682_b4ffcae73f_h.jpg
Forgotten Falls by Tim Devine, on Flickr

https://live.staticflickr.com/65535/55483933241_771aeecf7e_h.jpg
Triangle Falls by Tim Devine, on Flickr

https://live.staticflickr.com/65535/55482946082_6e2a463d7b_h.jpg
Triangle Falls by Tim Devine, on Flickr


Thanks! I was hoping for a bit more water at that one, but was happy there was as much water as there was. August is usually a tough month for waterfalls.
Aug 24, 2026 at 05:03 AM
_Refraction
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p.2 #18Nisi 16mm f2.8 for GFX / XCD
Still getting the hang of mine, and unfortunately haven't yet had a chance to shoot it properly on a tripod because I got swarmed by the biggest mosquitoes I've ever seen just as I was about to set up. However, I'm fairly happy with my handheld results so far. F/11 seems to be a nice sweet spot on my sample assuming careful sharpening. No regrets on this purchase as it's handy to have an ultrawide and it pairs neatly with my GF 23mm as my "moderate" wide.
Oct 10, 2026 at 07:36 AM
hauxon
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p.2 #19Nisi 16mm f2.8 for GFX / XCD
Anyone tested the Lee SW150 filter holder with this lens?
Oct 12, 2026 at 05:36 AM


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