Focal length: 21mm
Mount: M42
Aperture: F 3.8 - F 16
Min focus distance: 0.30m
Length (from flange): 53/55mm [+ 27mm for the adapter], rear element protrudes 8mm
Diameter: 77mm
Weight: 280gr.
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 3.8.
F 8.
F 22.
Closest focus is 30cm from
outermost
edge of the lens, F 8. Focus on
the program wheel of the camera.
A very nice lens, even wide open. At F 3.8 there is just a hint of
shaded edges and it's a bit soft, but gets much better when stopped down. Carefully aligned there
is virtually no distortion.
