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List of MF lenses on Fuji GFX
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PostPosted: Wed Dec 07, 2022 2:01 am    Post subject: Reply with quote
KEO wrote:
So i got a Pentax 67 to GFX adapter...

So far, as an experiment, I've only tried the SMC Pentax 67 200mm f/4 (the newer plastic version).

I found the results a bit surprising. It works great on the GFX, of course, but mine actually isn't all that sharp at smaller apertures. I was expecting great results at f/8 or so, and the sharpness there is adequate, but nothing special. The lens seems far more suited to portraits and that sort of thing, because the images I shot wide open look fantastic.

It's a big huge cannon on the camera, but it's really not that heavy. All in all, I deem the experiment successful.

It might be a problem of internal reflections between the sensor and the back face of the iris which dimish contrast. This a problem with many legacy lenses but it is worse with lens made for a larger format . You could get rid of the useless light by putting a baffle at the back of the lens or by using a lens shade which provides some adequate vignette.


PostPosted: Thu Dec 08, 2022 7:03 pm    Post subject: Reply with quote
memetph2 wrote:
It might be a problem of internal reflections between the sensor and the back face of the iris which dimish contrast. This a problem with many legacy lenses but it is worse with lens made for a larger format . You could get rid of the useless light by putting a baffle at the back of the lens or by using a lens shade which provides some adequate vignette.


I did put a big lens hood on the front. Apart from that, your theory is possible, even though some of the shooting I did was on an overcast day. I will keep it in mind.


PostPosted: Fri Dec 09, 2022 3:33 am    Post subject: Reply with quote
Thank you! Whoo Turtle Like Dog


Like 1 Like 1 Like 1


PostPosted: Fri Dec 09, 2022 10:15 am    Post subject: Reply with quote
Anyone tried Vivitar (Kiron) large front diameter 2.5/28mm? It seems to me the image circle should suffice.


PostPosted: Tue Feb 21, 2023 8:02 pm    Post subject: Reply with quote
I recently got a Konica AR to Leica M adapter, so I've been stacking that on my M to GFX adapter to try my Konica lenses. I think it's possible you might get better results with a dedicated AR-GFX adapter, but I can't say for sure.

Konica Hexanon 135mm f/3.2

This one has more vignetting than I was hoping - more than a lot of other old 135s. Still, it's quite usable and the images I got seemed really good. The strength of this lens continues to be sharpness at small apertures. Landscape and cityscape shots looked excellent, and it's good for macro too.

Konica Hexanon 57mm f/1.4

This one was better than I expected given the fast aperture. Very minimal vignetting, so it's nice and usable. Whether or not you'll enjoy it on the GFX comes down to whether or not you like the character of this lens. Personally I have a love/hate relationship with it.

Konica Hexanon 40mm f/1.8

This one was really surprisingly good given how wide it is. I believe I remember reading it's actually closer to 35mm than 40mm but don't quote me on that. In any case, it's a winner on the GFX with only minimal vignetting at landscape settings, which is what I would use it for. If you want to spend very little money for a landscape specialist lens for the GFX, you could certainly give this one a try. I think I paid < $20 for mine.

Konica Hexanon 28mm f/3.5, seven element version

It's a nice little lens but on the GFX the vignetting is pretty much what you would expect for a 28, big black hard corners.


PostPosted: Wed Feb 22, 2023 5:33 am    Post subject: Reply with quote
It is unlikely the 40mm will have actual focal length lower than 40mm. Most-likely it will be close to 40mm or slightly more. The same also apply to 50mm lenses. If you look at the lens data of Leica M/Leica R/Contax Yashica lenses, the focal length in data sheet for most 50mm are actually close to 52mm.


PostPosted: Sat Mar 04, 2023 1:17 am    Post subject: Reply with quote
Thank you very much for compiling this. An excellent reference! I am actually wondering what the factors are to determine if a 35mm lens will cause vignetting on a 44x33 medium format sensor.
Focus length? Front element diameter? length of a lens barrel?


PostPosted: Sat Mar 04, 2023 6:52 pm    Post subject: Reply with quote
vivaldibow wrote:
I am actually wondering what the factors are to determine if a 35mm lens will cause vignetting on a 44x33 medium format sensor.
Focus length? Front element diameter? length of a lens barrel?


I don't think the size of the front element has anything to do with it. The size of the rear element might have something to do with it in certain circumstances.

Most often you get vignetting at or near infinity focus because the rear element is so close to the sensor.

Other times the diameter of the body can be too small, especially for long, tubular lenses. If you have one of those old lenses with a long body and all the elements deep inside near the front, it's probably going to have significant vignetting. In fact, those are usually the worst from my experience. If the rear element sticks out from the body, you have a better chance.

Newer lenses with internal focus also often have vignetting.

I'm not sure anyone has yet found an old full frame lens wider than 50mm that doesn't have vignetting when adapted to the GFX, although there are a few with only a little vignetting. If you want to shoot with focal lengths wider than 50mm, you're almost certainly better off going with medium or large format lenses. You can adapt those too, of course.


PostPosted: Thu Mar 09, 2023 11:49 pm    Post subject: Reply with quote
KEO wrote:
vivaldibow wrote:
I am actually wondering what the factors are to determine if a 35mm lens will cause vignetting on a 44x33 medium format sensor.
Focus length? Front element diameter? length of a lens barrel?


I don't think the size of the front element has anything to do with it. The size of the rear element might have something to do with it in certain circumstances.

Most often you get vignetting at or near infinity focus because the rear element is so close to the sensor.

Other times the diameter of the body can be too small, especially for long, tubular lenses. If you have one of those old lenses with a long body and all the elements deep inside near the front, it's probably going to have significant vignetting. In fact, those are usually the worst from my experience. If the rear element sticks out from the body, you have a better chance.

Newer lenses with internal focus also often have vignetting.

I'm not sure anyone has yet found an old full frame lens wider than 50mm that doesn't have vignetting when adapted to the GFX, although there are a few with only a little vignetting. If you want to shoot with focal lengths wider than 50mm, you're almost certainly better off going with medium or large format lenses. You can adapt those too, of course.


Thanks for the information. I need to brush up my knowledge on optics from either college or high school. Smile
Given the extra cost of adapting lenses to GFX systems, compared to 35mm system, I think I may just resist the temptation of doing it for now.


PostPosted: Fri Mar 10, 2023 4:00 pm    Post subject: Reply with quote
vivaldibow wrote:

Given the extra cost of adapting lenses to GFX systems, compared to 35mm system, I think I may just resist the temptation of doing it for now.


I have seen quite a few interesting "artistic" photos using the vignetting and/or low corner resolution of vintage FF lenses on the Fuji GFX cameras (especially portraits). If you intend to use your GFX in that way, go for it.

Back in 2020 I have been testing the 50 MP GFX for landscape and product photogaphy, using really good MF vintage lenses such as the Mamiya Macro Sekor A 4/120mm. Looking at the GFX images, there was not much difference to images taken with the 43 MP Sony A7RII (slightly better detail when pixel peeping, but inferior colors [especially landscape greens and shadows] when comparing it to the A7 series and even more so the A900). Which means I certainly would not recommend using the GFX with vintage FF lenses for classical landscape purposes. Creative stuff, again, is another thing.

S


PostPosted: Fri Mar 10, 2023 4:40 pm    Post subject: Reply with quote
GFX50 use the same FSI sensor as the one found in Pentax 645Z. It is too old as of now compare to the BSI sensor in the GFX100. For those who are using a 4x-6x MP full frame camera, I would suggest skip the 50 and get the 100.


PostPosted: Sat Mar 11, 2023 6:21 pm    Post subject: Reply with quote
calvin83 wrote:
GFX50 use the same FSI sensor as the one found in Pentax 645Z. It is too old as of now compare to the BSI sensor in the GFX100. For those who are using a 4x-6x MP full frame camera, I would suggest skip the 50 and get the 100.


In general, I agree with this. If you can come up with the money, the 100 is worth it.

Personally I got my GFX50SII with a specific purpose in mind, and ultimate resolution wasn't the main factor. I'm very happy with it.


PostPosted: Sun Mar 12, 2023 2:24 am    Post subject: Reply with quote
KEO wrote:
calvin83 wrote:
GFX50 use the same FSI sensor as the one found in Pentax 645Z. It is too old as of now compare to the BSI sensor in the GFX100. For those who are using a 4x-6x MP full frame camera, I would suggest skip the 50 and get the 100.


In general, I agree with this. If you can come up with the money, the 100 is worth it.

Personally I got my GFX50SII with a specific purpose in mind, and ultimate resolution wasn't the main factor. I'm very happy with it.

Yes. 50MP is more than enough in general use.


PostPosted: Sun Mar 12, 2023 9:18 am    Post subject: Reply with quote
calvin83 wrote:
It is unlikely the 40mm will have actual focal length lower than 40mm. Most-likely it will be close to 40mm or slightly more. The same also apply to 50mm lenses. If you look at the lens data of Leica M/Leica R/Contax Yashica lenses, the focal length in data sheet for most 50mm are actually close to 52mm.


The Leica-designed, Minolta-made 4o/2 for the CL was closer to 35 than 4o. Many, if not most, focal lengths quoted are more likely marketing-optimised (the above would have competed with the Leica Summicron 35), unless it's Zeiss, who called their Contax G 47mm lens a 45 rather than a 5o, because it's closer to 45 by half a millimetre...


calvin83 wrote:
skip the 50 and get the 100.

If you want a GFX S, yes. R users have no choice Sad


PostPosted: Sun Mar 12, 2023 11:12 am    Post subject: Reply with quote
KEO wrote:

Personally I got my GFX50SII with a specific purpose in mind, and ultimate resolution wasn't the main factor. I'm very happy with it.


Back in 2020, I had been testing the 50S (not the 50SII), and I would love to hear more about your experiences with the 50SII (including your "specific purposes" ...).

Thank you in advance!

S


PostPosted: Sun Mar 12, 2023 11:58 am    Post subject: Reply with quote
kathala wrote:
calvin83 wrote:
It is unlikely the 40mm will have actual focal length lower than 40mm. Most-likely it will be close to 40mm or slightly more. The same also apply to 50mm lenses. If you look at the lens data of Leica M/Leica R/Contax Yashica lenses, the focal length in data sheet for most 50mm are actually close to 52mm.


The Leica-designed, Minolta-made 4o/2 for the CL was closer to 35 than 4o. Many, if not most, focal lengths quoted are more likely marketing-optimised (the above would have competed with the Leica Summicron 35), unless it's Zeiss, who called their Contax G 47mm lens a 45 rather than a 5o, because it's closer to 45 by half a millimetre...



The C40 should be very close to 40mm as Leica states the angle of view is 57 degrees. Leica does not have history of giving a false claim on the angle of view. There is a video on youtube showing a C40 and 35 Summicron side by side https://youtu.be/vUVWBDrMiHs?t=143 .

Here is the design of the C40. If the data is correct, the design focal length would be 39.1mm.


PostPosted: Mon Mar 13, 2023 4:23 pm    Post subject: Reply with quote
calvin83 wrote:
GFX50 use the same FSI sensor as the one found in Pentax 645Z. It is too old as of now compare to the BSI sensor in the GFX100. For those who are using a 4x-6x MP full frame camera, I would suggest skip the 50 and get the 100.


It may be an old sensor but the performance is still up there. Dynamic range doesn't differ much between the GFX100 and GFX50 and I have seen the dynamic range of the GFX50R rated above the GFX100. Other than the resolution there are very minor differences between them with the GFX100 winning sometimes and surprisingly the GFX50 still winning in other areas. The GFX50 can now be had for a price under what high MP FF bodies sell for and that makes it very tempting. Of course, this ignores the advantages of FF bodies like faster auto focus, better lens selection, and others.

https://blog.kasson.com/gfx-100/fujifilm-gfx-100-sharpness-compared-to-gfx-50s/

You are really splitting hairs and if you have the money and are willing to pay the premium for the GFX100 then I am happy for you and it's the better route, but the 50MP sensor is far from irrelevant or dead and a lot of the older bodies are on a fire sale.


PostPosted: Tue Mar 14, 2023 2:26 am    Post subject: Reply with quote
cbass wrote:
calvin83 wrote:
GFX50 use the same FSI sensor as the one found in Pentax 645Z. It is too old as of now compare to the BSI sensor in the GFX100. For those who are using a 4x-6x MP full frame camera, I would suggest skip the 50 and get the 100.


It may be an old sensor but the performance is still up there. Dynamic range doesn't differ much between the GFX100 and GFX50 and I have seen the dynamic range of the GFX50R rated above the GFX100. Other than the resolution there are very minor differences between them with the GFX100 winning sometimes and surprisingly the GFX50 still winning in other areas. The GFX50 can now be had for a price under what high MP FF bodies sell for and that makes it very tempting. Of course, this ignores the advantages of FF bodies like faster auto focus, better lens selection, and others.

https://blog.kasson.com/gfx-100/fujifilm-gfx-100-sharpness-compared-to-gfx-50s/

You are really splitting hairs and if you have the money and are willing to pay the premium for the GFX100 then I am happy for you and it's the better route, but the 50MP sensor is far from irrelevant or dead and a lot of the older bodies are on a fire sale.

Put aside the increased resolution, there are other factors I considered before i decide to opt for the 100S.

1. The sensor is a recent one. I expect it will not be "outdated" after many years. I have not upgrade my A7RII as I can't find much difference between the 42MP sensor to the 60MP sensor used in the latest cameras.

2. IBIS. I like to take photos at night. Without IBIS, I will have lots of trouble to keep the photos sharp. I will need the IBIS too when I am using mirror lenses.

3. Rangefinder lenses. I will be using many RF lenses including wide angle lenses. Back in the day when testing them on a A7 with FSI sensor, some of them produce a magenta cast on the edges of the photo. On the A7RII, the colour cast is much minor than in A7/II. Jim confirms the 100MP sensor is more resist to colour cast than the 50MP sensor.

4. AF speed. Although I will be mostly using manual lenses, I may consider buying some native AF lenses or adapting Canon EF lenses later. The 50MP sensor lacks the support of PDAF.

So, a 100S will be the only choice to fit my need. A 50R should be enough for most ppl which is my recommendation to my friend on a budget. The small form factor of the 50R is better for street photos as the 100S will draw lots of attentions when taking photos on the street.


PostPosted: Tue Mar 14, 2023 4:54 am    Post subject: Reply with quote
There is more to a camera than a sensor and all your reasons are good ones Yes, the 100S sensor is newer and probably here to stay for a very long time. The 50 sensor is old, but I disagree that it is too old to compare. Other than the resolution difference of 100MP vs 50MP it compares very well in other areas. Probably the reason this old sensor is still being sold today.

In some ways you have a step forward and also a step backward on the new sensor.

https://blog.kasson.com/gfx-100/visual-comparisons-of-fuji-gfx-100-shadow-noise/

The PDAF does increase auto focus speed, but it also can result in more banding. In fairness Kasson is pushing the files to a ridiculous level. I doubt you would encounter this using the camera properly. Furthermore, contrast AF is very reliable although its slow. I have to find the information again, but PDAF can miss more.

Kasson isn't the only one annoyed by the banding:

https://diglloyd.com/blog/2019/20190805_2200-FujifilmGFX100-PDAF-banding-noise.html

That doesn't mean the GFX100s isn't a step forward overall. Ultimately the GFX100 is better than the previous GFX50.

There is a 50S II now that has IBIS and the same battery as the GFX100s.

Personally, I like the original 50S the best. I like the knobs for ISO and Shutter speed like on the X-series cameras. It was also a more traditional design. It had the box shape like the old medium format film cameras. The 50R appeals the least to me. I struggle with a giant rangefinder design. The GFX100 or GFX50S II designs I can live with and welcome the IBIS.


PostPosted: Tue Mar 14, 2023 5:32 am    Post subject: Reply with quote
cbass wrote:
There is more to a camera than a sensor and all your reasons are good ones Yes, the 100S sensor is newer and probably here to stay for a very long time. The 50 sensor is old, but I disagree that it is too old to compare. Other than the resolution difference of 100MP vs 50MP it compares very well in other areas. Probably the reason this old sensor is still being sold today.

In some ways you have a step forward and also a step backward on the new sensor.

https://blog.kasson.com/gfx-100/visual-comparisons-of-fuji-gfx-100-shadow-noise/

The PDAF does increase auto focus speed, but it also can result in more banding. In fairness Kasson is pushing the files to a ridiculous level. I doubt you would encounter this using the camera properly. Furthermore, contrast AF is very reliable although its slow. I have to find the information again, but PDAF can miss more.

Kasson isn't the only one annoyed by the banding:

https://diglloyd.com/blog/2019/20190805_2200-FujifilmGFX100-PDAF-banding-noise.html

That doesn't mean the GFX100s isn't a step forward overall. Ultimately the GFX100 is better than the previous GFX50.

There is a 50S II now that has IBIS and the same battery as the GFX100s.

Personally, I like the original 50S the best. I like the knobs for ISO and Shutter speed like on the X-series cameras. It was also a more traditional design. It had the box shape like the old medium format film cameras. The 50R appeals the least to me. I struggle with a giant rangefinder design. The GFX100 or GFX50S II designs I can live with and welcome the IBIS.

When I need AF, I will need it fast enough, at least significant faster than manual focus. On sensor PDAF is reliable enough for my use.

There is no PDAF banding as I observed on 100S. The banding has been fixed on the 100 too as mentioned in Jim's blog https://blog.kasson.com/gfx-100/gfx-100-pdaf-banding-is-fixed/.

The 50S is very cheap now. They can be found for as cheap as US$1500. The price is unlikely to drop much in the future. It may be the time to get one if anyone is ready to enter the medium format world.


PostPosted: Tue Mar 14, 2023 10:14 am    Post subject: Reply with quote
How are the GFX cameras to use with 35mm lenses? There is a crop setting for that in the camera as I understand. Is there anything else worth mentioning if a lot of full frame lenses are going to be used? I'm tempted by the GFX 50R.

I probably need to upgrade soon anyway as my a7 throws random errors and part are falling off.


PostPosted: Tue Mar 14, 2023 12:57 pm    Post subject: Reply with quote
blotafton wrote:
How are the GFX cameras to use with 35mm lenses? There is a crop setting for that in the camera as I understand. Is there anything else worth mentioning if a lot of full frame lenses are going to be used? I'm tempted by the GFX 50R.

I probably need to upgrade soon anyway as my a7 throws random errors and part are falling off.

The native aspect ratio of a GFX is 4:3 with 0.79x crop factor. You switch to 3:2 or 16:9 or even 1:1. You can switch to 35mm format if your lens only covers full frame. You may need more adapters if you have a lot of different full frame lenses in different mounts.

There are lots of infos on the web on lens coverage data including the one posted on my blog.
https://lensfever.com/lens-coverage-chart-full-frame-lenses-on-medium-format-fujifilm-gfx-and-hasselblad-x/





PostPosted: Tue Mar 14, 2023 5:38 pm    Post subject: Reply with quote
calvin83 wrote:

There is no PDAF banding as I observed on 100S. The banding has been fixed on the 100 too as mentioned in Jim's blog https://blog.kasson.com/gfx-100/gfx-100-pdaf-banding-is-fixed/.

The 50S is very cheap now. They can be found for as cheap as US$1500. The price is unlikely to drop much in the future. It may be the time to get one if anyone is ready to enter the medium format world.


I missed that blog post. That’s great news about the banding. Thanks for posting that.

I did pick up a 50s. The prices now are about the same as a brand new Fuji APS-C body. Too good to pass up. Also looking at the performance of the X-T5 at 40 MP it seems like it’s too much for that sensor size. I am not seeing much difference in details resolved between the 26 MP sensors and the 40MP. This may be due to the lenses but if you need a whole new prime set you are starting over anyways.

Fuji also released the 35-70 that they have sold for $500. It’s a slow lens but you are able to try MF very cheaply now. Perhaps as cheap as it will ever get. You can be under or at little cost difference from a FF setup. Most of what I shoot is slow and stopped down to f8-f11 so works out well for me.


PostPosted: Tue Mar 14, 2023 7:13 pm    Post subject: Reply with quote
As calvin83 said there is a 35mm crop mode where you can use your FF lenses as full frame. You don’t take full advantage of the sensor and it comes out to 30 something MP for the gfx50 and 60 something MP for gfx100.

If you want to use the full sensor native GF lenses are the best followed by adapting medium format lenses. Using FF lenses the results will vary. Generally anything below 50mm becomes a crap shoot. Most 50mm will have some vignetting and smearing issues but can be recovered. Telephotos work the best. 85/90/135/180. Many will cover well but not all.

As calvin83 said there are lists of how well certain lenses cover the larger image circle.


PostPosted: Tue Mar 14, 2023 7:25 pm    Post subject: Reply with quote
blotafton wrote:
How are the GFX cameras to use with 35mm lenses?


In general, excellent - although there's a lot of variability between specific lenses.

There are two major factors to consider. The most obvious, most often discussed one is vignetting. Personally I feel this a bit overrated as a problem simply because everyone who adapts FF lenses to a GFX is automatically looking for vignetting all the time. It's true that some 35mm lenses have horrific vignetting when trying to cover the entire GFX sensor, and almost all have some vignetting, but in most cases it's not a huge problem. There are many different ways to deal with it.

Also, there are a fair number of 35mm lenses with no vignetting at all on the GFX, like the 85mm f/2 AiS Nikkor I use so often.

The less-talked-about problem is the distortions you get at the edges of the frame. For example, you might have nice, round soap bubble highlights in the center of the image, then as you move toward the edges you get narrower and narrower cat's eyes, and eventually you get very unpleasant squashed bananas at the far edges.

It's not just bokeh highlights though - you get all the worst distortion characteristics you normally don't see in FF.

stevemark wrote:
KEO wrote:

Personally I got my GFX50SII with a specific purpose in mind, and ultimate resolution wasn't the main factor. I'm very happy with it.


Back in 2020, I had been testing the 50S (not the 50SII), and I would love to hear more about your experiences with the 50SII (including your "specific purposes" ...).

Thank you in advance!


Sure! Just give me a little time to think what to say and write it up...
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