Focal length: 50mm
Mount: M42
Aperture: F 3.5 - F 16
Min focus distance: 0.60m
Length (from flange): 20/25mm [+ 27mm for the
adapter]
Diameter: 50mm
Weight: 56gr.
Some pictures:
A7 and the lens.
Sample pictures: ISO 320.
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 3.5.
F 8.
F 16.
Closest focus is 65cm from
outermost
edge of the lens, F 8. Focus on
the program wheel of the camera.
This
was the standard
lens for the later Zenit cameras, when they changed to M42 FFD. Already
at F 3.5 it's o.k. in the center, but soft towards the edges. Stopped
down it's
good in my
opinion, seen the price. It has some capabilities of close focussing. It's an
extremely small and lightweight lens and very very cheap.