AM4L wrote:
Fotodiox Nikon to GFX Mount adapter GFX 50 SII and a Samyang 14mm F/2.6 lens. At F4 the vignetting greatly goes away, examples below, excuse that they are nothing special, literally a test I shared for someone here. @ F/5.6 is pretty sharp throughout. There is zero processing on these other than reduction and framing. The full res look a lot better. In doing a better test against a bright white background the top left corner remains problematic even past F/5.6 and would require a little cropping. The quest for a great Wide continues!
GeorgeBo wrote:
Thanks Mark. May have to look into one of those
George
Crop loss is not too bad for as wide as it shoots. I updated the last image to show loss, about 150-200 pixels around edges. 3-4% is not bad. still leaves you a 48MP Image.
prashant wrote:
I've tested 90mm TS-E Canon lens using Viltrox adapter and it works quite well. I seen vigentting at 10mm SHIFT in either direction. Below that it is fine. Also included for comparison is A7sii files.
This is with 90mm TS-E version 1. I've been very happy with this lens on Sony FF. It does not disappoint on GFX. I rarely use full shift so fine with circa 5-7mm either side.
Finally I managed to get to the local woodlands and try out GFX R. I had written email to return it as I thought this will be difficult to handle due to size etc. However, after trying out I appreciate the certain slowness and the ease of using tilt and shift lenses compared to Sony FF. Having a choice is always good.
Has anyone tried 35mm Canon FD TS-E lens with GFX system?
I’ve got the Canon version 2 (I only shoot Sony) and it is an amazing lens. I’d put it up there with the new Voigtlander APO Lanthers. Even at full shift it is very good to excellent in the corners.
bobby350z wrote:
is it version I or II? II is better.
TakenWild wrote:
I’ve got the Canon version 2 (I only shoot Sony) and it is an amazing lens. I’d put it up there with the new Voigtlander APO Lanthers. Even at full shift it is very good to excellent in the corners.
AM4L wrote:
Fotodiox Nikon to GFX Mount adapter GFX 50 SII and a Samyang 14mm F/2.6 lens. At F4 the vignetting greatly goes away, examples below, excuse that they are nothing special, literally a test I shared for someone here. @ F/5.6 is pretty sharp throughout. There is zero processing on these other than reduction and framing. The full res look a lot better. In doing a better test against a bright white background the top left corner remains problematic even past F/5.6 and would require a little cropping. The quest for a great Wide continues! Crop loss shown on top left of larger res image.
I had a little follow-up on this topic, today I received a Venus Optics Laowa Magic Format Converter MFC (Nikon F to Fujifilm G), I have been using the Fotodiox version for Nikkor for Broncia and Metabones for GFX version for regular F mount lenses for Nikon. I learned from my Nikon on Sony days that different adapters behave differently and been feeling nagged about not buying the Laowa to begin with. Turns out there is apparently a use case for both I learned in my first 10 minutes with the adapter. Use case 1 is that wides should work better, verdict, no edge or corner loss with the Samyang, even at F2.8. Use case two, there are lenses that will mount the the Metabones but not the Laowa.
Here is a similar shot from the Samyang on the Laowa. note sharp trees and no corner loss.
Olympus OM 135/3,5 @ f/8. JPG SOOC with a little crop at the bottom.
Edit: The image circle is mostly sufficient for the full 33x44 mm sensor, but when using IBIS one or two corners can end up a bit darker due to the sensor moving around. This was shot with IBIS off, from a tripod.
IMO, the GFX 100S has an ability to turn night into day that is without peer.
For example, this photo was taken at 4:15 am this morning. It was so dark that I didn't see the light coming through the windows around the front door with my naked eyes until after they had adjusted to it several minutes later:
GFX 100S | P645 45-85/f4.5 @ 45 mm & f11 | ISO 100 and 8 minutes (!) with LENR turned off
And another photo, taken ~12 minutes later:
GFX 100S | P645 45-85/f4.5 @ 50 mm & f11 | ISO 100 and 60 seconds with LENR turned off
Audii-Dudii wrote:
IMO, the GFX 100S has an ability to turn night into day that is without peer.
For example, this photo was taken at 4:15 am this morning. It was so dark that I didn't see the light coming through the windows around the front door with my naked eyes until after they had adjusted to it several minutes later:
GFX 100S | P645 45-85/f4.5 @ 45 mm & f11 | ISO 100 and 8 minutes (!) with LENR turned off
Interesting. I'm not saying that it's a bad thing, but that first photo in particular looks like a 3D rendered scene
Borrowed a Nikon 80-200/2.8 AF-D to try out. It seems pretty consistent over the entire range with bad vignetting in the extreme corners even stopped down. But I suppose it could work for portraits. Personally, I don't accept it and it's not a lens I will use after the test. It's also very heavy (1350 grams without adapter) and physically long.
Edit: Looking into the lens from the rear, I suspect that the rear baffle is causing the vignetting. It could probably be removed, but I can't try since it's not my lens.
This is wide open at 200 mm. Vignetting is corrected with "light falloff" set to 40 in C1.
Florent Chouffot wrote:
Interesting. I'm not saying that it's a bad thing, but that first photo in particular looks like a 3D rendered scene
FYI, I also photographed this scene one and two stops darker, but posted this version because it best showed just how clean the files from the 100S are / can be in close-to-worst case conditions.
I will also confess I've been processing my photos a bit brighter than I usually do because I can. Once the novelty wears off, I expect they will return to being darker and more moody...
Ultraluminal wrote:
Has anyone tried the Mamiya 7 43mm or other biogon design? I am curious if the thick sensor stack will cause problems.
I haven't tried the 43mm, but I've seen RAW files made by Christoph Kugler, who converted the mount for his Mamiya 7 43mm and other lenses to use on a Phase One camera. Image quality was very good, even with some shift. I did not some sensor cross-talk, which is to be expected. Here's his site: https://www.christoph-kuegler.com/conversion
Taking inspiration from Christoph's work, I converted a couple Mamiya G lenses for use on GFX tilt-shift outfit (the 50mm f/4 and the 150mm f/4.5). They are superb. The 50mm is not a Biogon design, as far as I know. I was expecting to have to use lens cast correction because it is a semi-symmetrical design. However, it's completely fine, even shifted.
The Mamiya 6 lenses are superb, so I would expect equally good or better performance from Mamiya 7 lenses. Personally, if I were shooting a GFX camera and didn't already own a set of Mamiya 7 lenses, I wouldn't buy them to use with that adapter instead of GF lenses. Now if I owned a set of Mamiya 7 lenses already, and wanted to use them on GFX, that would be a different story.
Hi… does anyone here have experience with the novoflex FD to gfx adaptor? I’m curious if the aperture control on lens still works as the adaptor doesn’t appear to have a lock feature.
Any advice would be much appreciated!
And in the spirit of sharing I can confirm the voigtlander 50mm Nokton f1.2 m mount on a novoflex lm to gfx adaptor works really well with only minor vignetting.
luke.price wrote:
Hi… does anyone here have experience with the novoflex FD to gfx adaptor? I’m curious if the aperture control on lens still works as the adaptor doesn’t appear to have a lock feature.
Any advice would be much appreciated!
And in the spirit of sharing I can confirm the voigtlander 50mm Nokton f1.2 m mount on a novoflex lm to gfx adaptor works really well with only minor vignetting.
Yes, I have used that adapter and it works very well. The aperture control on the lens still works and that is how you will control the aperture when shooting FD lenses.
