Focal length: 20mm
Mount: M42
Aperture: F 3.5 - F 16
Min focus distance: 0.18m
Length (from flange): 55/59mm, including front cap (front lens
protruding), [+ 27mm for the adapter]
Diameter: 84mm
Weight: 370gr.
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 only 11cm from
outermost
edge of the lens, F 8. Focus on
the program wheel of the camera.
This
is a converted lens. It has M42 and M39 mount via a special adapter.
Focus is spot-on for both. The seller said that it had Nikon mount
before the conversion which matches with the design of the lens. The
front cap is vital for this lens as the front element is protruding and
prone to damage.
A nice lens, even wide open. At F 3.8 there is just a hint of
shaded edges. There is some colour cast and it's softer than the Tokina
17mm. It has astonishing capabilities of close focussing for
such a wide lens. Carefully aligned there
is virtually no distortion.
