I did some tests with the Contax 645 120 macro on my 50s. I'm only able to use it fully open as the aperture is electronic, and I'm using a simple adapter.
I wanted to see how bokeh balls would look from various distances behind a subject so I'm using led lights for this. The pics might be of use to someone.
Some quick tests with Sigma 14-24mm f2.8 and Canon TS-E 24mm II to decide which one to keep.
The Sigma seems to be wider at 24mm then the Canon. The non-removable hood of the Sigma causes heavy vignetting at 14-18mm, so cropping is needed. At 20-24mm the hood isn't a problem and sharpness is very good.
Sigma 14-24mm at 14mm/f11
Sigma 14-24mm at 20mm/f11
Sigma 14-24mm at 24mm/f11
Canon T-SE 24mm at f11
Here is a crop from Sigma 14-24mm at 14mm, wide open, showing a high degree of softness. Only the very center of the frame is sharp, but I guess at f2.8 at the wide end of the zoom that is to be expected. I got much better WO results at 22mm as you can see below.
Sigma 14-24mm at 14mm/f2.8
The same crop at f11 is actually usable, even if the extreme edges are still a bit soft.
Sigma 14-24mm at 14mm/f11
The crop:
For wide open sharpness across the frame and no cropping I found 22mm to be the sweet spot.
Sigma 14-24mm at 22mm/f2.8
The Sigma at 20-24mm/f11 is perfect, as is Canon T-SE 24mm at f11. The Canon is manual focus, but has tilt and shift. The Canon can take filters easily which the Sigma can not. The Sigma has AF (I use Viltrox adapter) for that point and shoot experience. Hmm, I'll have to keep both of these lenses for my GFX I think.
briantho wrote:
I did some tests with the Contax 645 120 macro on my 50s. I'm only able to use it fully open as the aperture is electronic, and I'm using a simple adapter.
I wanted to see how bokeh balls would look from various distances behind a subject so I'm using led lights for this. The pics might be of use to someone.
That Contax 120mm is fantastic on the GFX. The Fringer smart adapter works perfectly with it but it ain't cheap.
today got and surprisingly pentax takumar smc 1.8/55mm full cover gfx sensor even at f1.8 , my super takumar 1.4/50mm even at f5.6-8 still heavy vignetting in corners. waiting 150gr nice takumar 3.5/35mm and macro takumar 1:1 4/50mm here is one from Super tak 1.4/50mm at f2.8
Thanks for the detailed reports of the Sigma and Canon, Brian. I’m considering jumping into GFX, and those two lenses are top of my list for a wide angle. The Sigma doesn’t perform quite as well as I expected from others’ reports. I really appreciate your excellent test shots, and your showing the crop frame, as I would be shooting a lot of frames wider than 3:2, and it looks like I could squeeze a bit more out of the crop by shooting wide.
Hi everyone, I just jumped into GFX, and so far I've tried a few EF mount lenses... the 70-200/4, 70-300L, Tamron 45/1.8, and Sigma 105/2.8 OS. I've found more field curvature and light falloff than I expected in general, but performance has been pretty good. The Tamron 45/1.8 in particular looks great even at 4:3.
My question is, does anyone have an AF telephoto zoom they're happy with? I'm looking for one for landscape use, and while the 70-200/4 works well, it does have a decent amount of falloff (and a bit of vignetting in the middle of its range). Ideally I'd like to go longer, or at least find something that has no corner issues at 4:3.
I'm wondering what others are using, or if everyone has "given up" and bought a GFX 100-200?
To at least share, here's a photo from my first time out with my 70-200/4. I literally got the lens from FedEx, tossed it in a bag, and raced out to beat the sunset by only ten minutes.
Hi everyone, I just jumped into GFX, and so far I've tried a few EF mount lenses... the 70-200/4, 70-300L, Tamron 45/1.8, and Sigma 105/2.8 OS. I've found more field curvature and light falloff than I expected in general, but performance has been pretty good. The Tamron 45/1.8 in particular looks great even at 4:3.
My question is, does anyone have an AF telephoto zoom they're happy with? I'm looking for one for landscape use, and while the 70-200/4 works well, it does have a decent amount of falloff (and a bit of vignetting in the middle of its range). Ideally I'd like to go longer, or at least find something that has no corner issues at 4:3.
I'm wondering what others are using, or if everyone has "given up" and bought a GFX 100-200?
To at least share, here's a photo from my first time out with my 70-200/4. I literally got the lens from FedEx, tossed it in a bag, and raced out to beat the sunset by only ten minutes.
For longer starting with the Canon 85mm 1.4IS. Very very good and autofocuses very well with the Fringer adapter. Moving up to the Canon 90mm t/s-e II, again, exemplary. The Contax 645 120mm f/4 Macro is just unbelievable optically and focusses natively to 1:1 and with floating elements is great at all distances. The Canon 135mm t/s-e completely rocks this camera as does the Sigma 135mm 1.8. They are both scary in different ways. I also have the Sigma 150mm OS Macro which is a solid performer but maybe not quite up to the others mentioned here. Still, I liked enough to not sell it and it's stabilized. The Canon 200mm 2.8 is remarkably good with only a small amount of correctable vignetting. The Contax 645 210mm f/4 is exceptional at distances closer that about 60 or seventy feet but suffers from large amounts of soft blue fringing at farther distances. For head shots, etc. just amazing. And finally, for the lenses I own and use, the early non-IS version of the Canon 300mm f/4 is very very good and is much better than the newer IS version. Go figure.
I bought the Fuji 100-200 and consider it a really mixed bag. I consider it to be a very good 100-170mm zoom but those last 30mm can really surprise you under certain circumstances with a nasty blue fringing. In some directions the lens is amazing and in other directions that uncorrectable blue fringe is a nasty bitch to deal with. The fringing gets better as you stop down but you've only got two stops of usable aperture as you're starting at 5.6. So, it's a more limited zoom in my opinion, but I'll readily admit that I'm probably more picky than most.
Hi everyone, I just jumped into GFX, and so far I've tried a few EF mount lenses... the 70-200/4, 70-300L, Tamron 45/1.8, and Sigma 105/2.8 OS. I've found more field curvature and light falloff than I expected in general, but performance has been pretty good. The Tamron 45/1.8 in particular looks great even at 4:3.
My question is, does anyone have an AF telephoto zoom they're happy with? I'm looking for one for landscape use, and while the 70-200/4 works well, it does have a decent amount of falloff (and a bit of vignetting in the middle of its range). Ideally I'd like to go longer, or at least find something that has no corner issues at 4:3.
I'm wondering what others are using, or if everyone has "given up" and bought a GFX 100-200?
To at least share, here's a photo from my first time out with my 70-200/4. I literally got the lens from FedEx, tossed it in a bag, and raced out to beat the sunset by only ten minutes.
Try adding a 1.4x to your 70-200. I use one on my Nikon 80-200/2.8 and, while it does take a small hit in overall resolution, coverage and FC are not major issues.
Hi everyone, I just jumped into GFX, and so far I've tried a few EF mount lenses... the 70-200/4, 70-300L, Tamron 45/1.8, and Sigma 105/2.8 OS. I've found more field curvature and light falloff than I expected in general, but performance has been pretty good. The Tamron 45/1.8 in particular looks great even at 4:3.
My question is, does anyone have an AF telephoto zoom they're happy with? I'm looking for one for landscape use, and while the 70-200/4 works well, it does have a decent amount of falloff (and a bit of vignetting in the middle of its range). Ideally I'd like to go longer, or at least find something that has no corner issues at 4:3.
I'm wondering what others are using, or if everyone has "given up" and bought a GFX 100-200?
To at least share, here's a photo from my first time out with my 70-200/4. I literally got the lens from FedEx, tossed it in a bag, and raced out to beat the sunset by only ten minutes.
From what I've seen the Canon 100-400mm ii lens might be your best bet. Definitely some vignetting at 400mm but IQ for a zoom looks pretty good. There are some landscape samples on the gfx if you search on dpreview.
Not a zoom but I'm extremely happy with the Sigma 85 f1.4 and 135 f1.8 and the canon 200 f2.8 ii lenses on the Fringe adapter. Brilliant image quality from all three. The Sigma 135mm is probably the best but the old canon 200 f2.8 is great from f4 onwards.
here is one from Super tak 1.4/50mm at f2.8
