GFX50R with Voigt APO Lanthar lenses?
p.1 #1GFX50R with Voigt APO Lanthar lenses?
I picked up the 50/2 APO Lanthar for use with my XT5 and woozier - what a lens. I understand that if adapted to the 50R the vignetting would be manageable (even if slight cropping in post would be needed.). That would be a 40mm equivalent walk about lens with the 50R. I imagine that the image quality would be pretty sweet when combining that lens with a GFX sensor.
If I also used the 28/2 Lanthar, the vignetting would likely be quite a bit more severe - would it even be usable or correctable in post?
I am confident that my 75/1.9 Ultron and eventually the 90/4 Lanthar would be fine.
Still a relatively small kit for this type of IQ (which is important to me).
Looks like the 50R could be had for a similar price (give or take a bit) as an SL2. Obviously, the SL2 would not have the vignetting issues, but I would give up the smooth tonal gradations of the gfx sensor. I also like the 65:24 format option for panos.
Thoughts? Is this a silly idea? - I wish I had a buddy in the area that had one I could test.
I am planning to keep the X-mount series as well.
If I also used the 28/2 Lanthar, the vignetting would likely be quite a bit more severe - would it even be usable or correctable in post?
I am confident that my 75/1.9 Ultron and eventually the 90/4 Lanthar would be fine.
Still a relatively small kit for this type of IQ (which is important to me).
Looks like the 50R could be had for a similar price (give or take a bit) as an SL2. Obviously, the SL2 would not have the vignetting issues, but I would give up the smooth tonal gradations of the gfx sensor. I also like the 65:24 format option for panos.
Thoughts? Is this a silly idea? - I wish I had a buddy in the area that had one I could test.
I am planning to keep the X-mount series as well.
Mar 14, 2026 at 08:01 AM
p.1 #2GFX50R with Voigt APO Lanthar lenses?
Why yes, thats doable.
If you need to crop though you wont get 40mm equiv.
Also I would like to point out that Leica M lenses in the wide angle expect Leica M sensors. That means they want the adoptions that Leica has to make digital sensors work with their lenses. Regular sensors lik in the Fujifilm GFX cameras do not have these adaptions. So for wide angle this wont work.
It would work with SLR lenses though, because wide angles for SLR have to accomodate the mirror box anyway and thus the angles of the light are much less steep.
Thats why my first "lens" for a GFX system, if I ever start one, will probably be a Nikon F to Fujifilm GF adapter.
If you need to crop though you wont get 40mm equiv.
Also I would like to point out that Leica M lenses in the wide angle expect Leica M sensors. That means they want the adoptions that Leica has to make digital sensors work with their lenses. Regular sensors lik in the Fujifilm GFX cameras do not have these adaptions. So for wide angle this wont work.
It would work with SLR lenses though, because wide angles for SLR have to accomodate the mirror box anyway and thus the angles of the light are much less steep.
Thats why my first "lens" for a GFX system, if I ever start one, will probably be a Nikon F to Fujifilm GF adapter.
Mar 14, 2026 at 04:55 PM
p.1 #3GFX50R with Voigt APO Lanthar lenses?
You don't have to crop many files with vignetting to get sick of doing it. It would be a shame to have a Gfx and the only lens be one that always vignettes. Its fine with specialty, less used lenses but I would want an everyday that uses the entire frame. Adapting a 645 lens is an alternative w/o that issue.
Mar 14, 2026 at 10:30 PM
RoamingScott
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p.1 #4GFX50R with Voigt APO Lanthar lenses?
You can simply make a preset or action that automatically crops the correct amount for that particular lens, and even automate it on import 😉
SGinNorcal wrote:
You don't have to crop many files with vignetting to get sick of doing it. It would be a shame to have a Gfx and the only lens be one that always vignettes. Its fine with specialty, less used lenses but I would want an everyday that uses the entire frame. Adapting a 645 lens is an alternative w/o that issue.
SGinNorcal wrote:
You don't have to crop many files with vignetting to get sick of doing it. It would be a shame to have a Gfx and the only lens be one that always vignettes. Its fine with specialty, less used lenses but I would want an everyday that uses the entire frame. Adapting a 645 lens is an alternative w/o that issue.
Mar 14, 2026 at 11:18 PM
p.1 #5GFX50R with Voigt APO Lanthar lenses?
RoamingScott wrote:
You can simply make a preset or action that automatically crops the correct amount for that particular lens, and even automate it on import 😉
That could be a great solution as long as you didn't mind a generous crop. Most lenses that vignette do it at a variable amount, more at larger aperture and less stopped down.
You can simply make a preset or action that automatically crops the correct amount for that particular lens, and even automate it on import 😉
SGinNorcal wrote
You don't have to crop many files with vignetting to get sick of doing it. It would be a shame to have a Gfx and the only lens be one that always vignettes. Its fine with specialty, less used lenses but I would want an everyday that uses the entire frame. Adapting a 645 lens is an alternative w/o that issue.That could be a great solution as long as you didn't mind a generous crop. Most lenses that vignette do it at a variable amount, more at larger aperture and less stopped down.
Mar 14, 2026 at 11:47 PM
p.1 #6GFX50R with Voigt APO Lanthar lenses?
maybe the solution is, if I get the 50R, use the 50 APO Lanthar as my small light everyday carry lens and other VM lenses for longer focal length. But use something like the Pentax 35 or Mamiya 35 for wide angle use.
Mar 15, 2026 at 08:28 AM
p.1 #7GFX50R with Voigt APO Lanthar lenses?
Seems totally pointless. M lenses will perform like crap because the cover glass of the GFX sensor is extremely thick (~double that of Sony cameras that already make M lenses perform like crap). Vignetting is sometimes correctable, but severe curvature of field is not.
If you want a GFX, get GF lenses. Period.
If you want a GFX, get GF lenses. Period.
Mar 15, 2026 at 12:08 PM
p.1 #8GFX50R with Voigt APO Lanthar lenses?
I really don't think the lens will be anywhere near as sharp in the GFX corners as you may think it will be, so if you are thinking that the lens will be a sharpness king throughout the image, it probably won't be that.
However, if there are different reasons you like the Apo Lanthar (specifically rendering), using the area beyond the normal image circle may not be much (if at all) of a compromise, other than the likely need to be cropping to handle missing corners.
It's not my way of shooting with the GFX, but seems perfectly reasonable as long as you understand the tradeoffs. I'd be more inclined to find older manual 645 lenses to use from Pentax or Mamiya, but the rendering character is likely to be very different from the Apo Lanthar.
However, if there are different reasons you like the Apo Lanthar (specifically rendering), using the area beyond the normal image circle may not be much (if at all) of a compromise, other than the likely need to be cropping to handle missing corners.
It's not my way of shooting with the GFX, but seems perfectly reasonable as long as you understand the tradeoffs. I'd be more inclined to find older manual 645 lenses to use from Pentax or Mamiya, but the rendering character is likely to be very different from the Apo Lanthar.
Mar 17, 2026 at 12:14 PM
p.1 #9GFX50R with Voigt APO Lanthar lenses?
I have a bunch of M lenses, mostly voigtlander. I still pick up my native lenses for the GFX, the 45mm if I need something 'small'. My GFX has lpf2 removed so I can have an effectively thinner sensor stack than stock if I put a uvir filter on the lens.
The native lenses are much better than any M lens adapted.
If you want a small lens for your GFX I can suggest the 40/1.8 Konica Hexanon AR. It covers well but won't come close to the 45mm native lens in performance.
The native lenses are much better than any M lens adapted.
If you want a small lens for your GFX I can suggest the 40/1.8 Konica Hexanon AR. It covers well but won't come close to the 45mm native lens in performance.
Mar 17, 2026 at 05:42 PM
p.1 #10GFX50R with Voigt APO Lanthar lenses?
thrice wrote:
If you want a small lens for your GFX I can suggest the 40/1.8 Konica Hexanon AR. It covers well but won't come close to the 45mm native lens in performance.
Hmmm, I tried that lens on my old a7 II and it gave really bad backwards curvature of field. I imagine it's much worse on the stock GFX sensor. It's a very sharp lens with nice colors though, at least well stopped down.
Edit: Personally I adore the GF 50/3.5 and there aren't many adapted lenses that are smaller including the adapter.
If you want a small lens for your GFX I can suggest the 40/1.8 Konica Hexanon AR. It covers well but won't come close to the 45mm native lens in performance.
Hmmm, I tried that lens on my old a7 II and it gave really bad backwards curvature of field. I imagine it's much worse on the stock GFX sensor. It's a very sharp lens with nice colors though, at least well stopped down.
Edit: Personally I adore the GF 50/3.5 and there aren't many adapted lenses that are smaller including the adapter.
Mar 18, 2026 at 05:14 AM
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p.1 #11GFX50R with Voigt APO Lanthar lenses?
Perhaps it isn't worth it. Just keep loving the XT5.
Mar 18, 2026 at 07:03 AM
p.1 #12GFX50R with Voigt APO Lanthar lenses?
pechance wrote:
Perhaps it isn't worth it. Just keep loving the XT5.
If someone made an APS equivalent to the 35mm Summilux lens from the Mandler era, it would be my absolute most favorite lens on the XT5. Not sure anyone comes close, though, but damn, that ought to be a relatively easy lens to manufacture these days.
The aberrations come for free with the simple optics of those older lenses. It wasn't sharp in the corners, however, but once stopped down, was certainly sharp enough. But the rendering... absolutely my favorite of non- large format lenses.
Perhaps it isn't worth it. Just keep loving the XT5.
If someone made an APS equivalent to the 35mm Summilux lens from the Mandler era, it would be my absolute most favorite lens on the XT5. Not sure anyone comes close, though, but damn, that ought to be a relatively easy lens to manufacture these days.
The aberrations come for free with the simple optics of those older lenses. It wasn't sharp in the corners, however, but once stopped down, was certainly sharp enough. But the rendering... absolutely my favorite of non- large format lenses.
Mar 18, 2026 at 10:07 AM
p.1 #13GFX50R with Voigt APO Lanthar lenses?
mjm6 wrote:
If someone made an APS equivalent to the 35mm Summilux lens from the Mandler era, it would be my absolute most favorite lens on the XT5. Not sure anyone comes close, though, but damn, that ought to be a relatively easy lens to manufacture these days.
The aberrations come for free with the simple optics of those older lenses. It wasn't sharp in the corners, however, but once stopped down, was certainly sharp enough. But the rendering... absolutely my favorite of non- large format lenses.
I think the Voigtlander 35 f/1.2 for Fuji X mount might be pretty close. To my eye it has a pretty similar rendering.
pechance wrote
Perhaps it isn't worth it. Just keep loving the XT5.The aberrations come for free with the simple optics of those older lenses. It wasn't sharp in the corners, however, but once stopped down, was certainly sharp enough. But the rendering... absolutely my favorite of non- large format lenses.
I think the Voigtlander 35 f/1.2 for Fuji X mount might be pretty close. To my eye it has a pretty similar rendering.
Mar 18, 2026 at 10:24 AM
p.1 #14GFX50R with Voigt APO Lanthar lenses?
Steve Spencer wrote:
If someone made an APS equivalent to the 35mm Summilux lens from the Mandler era, it would be my absolute most favorite lens on the XT5. Not sure anyone comes close, though, but damn, that ought to be a relatively easy lens to manufacture these days.
The aberrations come for free with the simple optics of those older lenses. It wasn't sharp in the corners, however, but once stopped down, was certainly sharp enough. But the rendering... absolutely my favorite of non- large format lenses.I think the Voigtlander 35 f/1.2 for Fuji X mount might be pretty close. To my eye it has a pretty similar rendering.
I haven't tried the 23mm of that line but I was thinking it might be the closest that has been made.
The 70's era 50mm Summilux had a very different character than the 35mm. Both were really great IMO.
mjm6 wrote
pechance wrote
Perhaps it isn't worth it. Just keep loving the XT5.The aberrations come for free with the simple optics of those older lenses. It wasn't sharp in the corners, however, but once stopped down, was certainly sharp enough. But the rendering... absolutely my favorite of non- large format lenses.
I haven't tried the 23mm of that line but I was thinking it might be the closest that has been made.
The 70's era 50mm Summilux had a very different character than the 35mm. Both were really great IMO.
Mar 18, 2026 at 10:49 AM
p.1 #15GFX50R with Voigt APO Lanthar lenses?
Tried it on my GFX100S, and it failed there too, pretty miserably, just like on every body other than the M. It is extremely sharp in the centre, but it goes out of shape almost immediately beyond that, even at f/8. It really looks like a lens designed specifically around the M system, judging by how badly it behaves on everything else, from the SL3 to the Z9 to Sony. By comparison, my 40mm f/1.2 on GFX feels almost native.
Mar 18, 2026 at 11:50 AM
RoamingScott
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p.1 #16GFX50R with Voigt APO Lanthar lenses?
If it worked, people would be doing it 
Mar 18, 2026 at 12:00 PM
p.1 #17GFX50R with Voigt APO Lanthar lenses?
I guess using the crop of the xt5 will help reduce the corner issue of using M lenses.
Mar 18, 2026 at 12:36 PM
p.1 #18GFX50R with Voigt APO Lanthar lenses?
RoamingScott wrote:
If it worked, people would be doing it
You are an optimist
If it worked, people would be doing it
You are an optimist
May 01, 2026 at 08:57 AM
p.1 #19GFX50R with Voigt APO Lanthar lenses?
A used GF50 or GF35-70 is cheaper than any of the adapted lenses mentioned above.
May 07, 2026 at 06:24 AM