Here's some wacka-doodle bokeh tests. Notice even at F1.8 the 85/1.2 suffers from mechanical vignetting on a Canon body. Now on the A7r the true beauty of this lens comes forth. Same with the Rokkor, no mechanical vignetting. Not sure if the Metabones III Canon adapter will spoil the show, using a cheap unpowered EOS-Nex adapter
Quick snaps with the A7R + ZM 85 f2 whilst walking the kids and dog this arvo. Interestingly it appears as though the lens vignettes. I can't remember what aperture I shot at, but the dark corners appear in a number of shots I took.
Sean.
Your CV 21/1.8 photos show no obvious signs of colour-shift, which would be easy to see in the fenced landscape shot at least, although there is corner vignetting. Did you remove any shift / lateral darkening in LR or Cornerfix or are these shots indicating there is no colour-shift issue?
Martin
All images were shot with the Sony A7, and a variety of rangefinder (Canon ltm 35/2, Canon ltm 50/1.2, CZ Sonnar 50/1.5, CV 21/4) and SLR (Contax Zeiss 28/2.8, Contax Zeiss 35-70mm f3.4) lenses. You can identify which lens was used by the file name. Some of the rangefinder lens shot were made using a Kipon adapter ring with built in helicoid to allow for closer focusing.
Some quick thoughts on the Sony A7: Solid build quality, and it balances very well with rangefinder lenses. I love the customizability of this camera. You can set it up just the way you like it. The default setting to have ISO selected by scrolling the back control dial was not working for me as it kept getting scrolled by accident, however It was an easy fix to reassign that function to a different button.
The image quality at higher ISOs is very good. You can pretty much set it for auto ISO and not think about it.
The shutter release is quiet soft/sensitive. It does not have a noticeable half-press/focus feedback resistance like the M9. Took a little getting used to at first, but its transparent to me now.
The battery life is noticeably worse than the NEX series of cameras. I needed two batteries to get me through a day of shooting, though I never fully discharged the second battery.
The widest lens I used on this trip was the CV 21mm f4. The magenta edge issue was apparent in some images, but not all. Corner smearing was an issue with the CV 21mm f4.
The Canon 50mm f1.2 performs very nicely, with better results that I sued to get with an M9. Similarly, the Canon ltm 35mm f2 is a superb performer.
The Zeiss Sonnar 50mm f1.5 is also a very good performer on the A7. Tons of bokeh wide open, yet still sharp and contrasty in the center. Stopped down to f8 and it is clinically sharp across the frame.
Contax/Zeiss SLR lenses, while quite large on this camera, perform extremely well. The 35-70mm f3.4 is better than the 28mm f2.8, but not by too wide of a margin....Show more →
BenM wrote:
Quick snaps with the A7R + ZM 85 f2 whilst walking the kids and dog this arvo. Interestingly it appears as though the lens vignettes. I can't remember what aperture I shot at, but the dark corners appear in a number of shots I took.
