Focal length: 50mm
Mount: Contax/Yashica
Aperture: F 1.7 - F 16
Min focus distance: 0.55m
Length (from flange): 36/41mm [+ 27mm for the adapter]
Diameter: 60mm
Weight: 195gr.
Some pictures:
A7 and the lens.
The grip is a HorusBennu
grip attached to a Manfrotto 200PL style quick
release plate, a special plate made by HorusBennu for their grips. It
allows you to use the camera, with the grip attached, on a Manfrotto
RC2 Rapid Connect Adapter.
Sample pictures: ISO 200
You may click
on the sample image (except closest focus) for full resolution. The
full resolution image opens in a new window, so you can keep it open
for comparison. Focus is on the
satellite
dish to the right of the big solar panel near the center of the photo.
F 1.7.
F 4.
F 8.
F 16.
Closest focus is 55cm from
outermost
edge of the lens, F 8. Focus on
the contacts of the battery.
The
performance of this said to be lens is fine, it's one of the cheaper
Zeiss lenses which can be found for decent prices although it's a
6-lens construction. Wide open it shows a bit of vignetting and
softness. Stopped down it's
sharper, at F 2 it remains softer
towards the edges. The lens has moderate
close focussing capablities. It is relatively big and
not lightweight.
My
lens doesn't focus to infinity. The reason might be the adapters. I did
not find my C/Y adapter, so I used a C/Y to Canon adaper and then a
Canon to NEX adapter. This might have offset the lens by a mm. If I
find my C/Y adapter, I'll do the test again.
