Focal length: 28mm
Mount: M39
Aperture: F 6 - F 22
Min focus distance: 1m
Length (from flange): 23/26mm [+ 11mm for the adapter], rear element protrudes 5mm
Diameter: 50mm
Weight: 60gr.
Some pictures:
A7 and the lens.
Sample pictures: 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 6.
F 11.
F 22.
Closest focus is 85cm from
outermost
edge of the lens, F 11. Focus on
the program wheel of the camera.
In my opinion this lens is a deception for full format digital. As far
as I remember it delivered quite good results on film with a Bessa L.
It's based on the famous Topogon design and it's slow. With an Alpha 7
there is vignetting wide open which doesn't completely disppear when
closed down. Edges are soft (or distorted) wide open and even closed
down they are softer than the center. The lens has no close focussing
facilities. However it is extremely small and lightweight, but it's
quite expensive. I will try it on the A6000 later.
