Focal length: 40mm
Mount: M39
Aperture: F 4 - F 16
Min focus distance: 0.65m
Length (from flange): 26/31mm [+ 11mm for the adapter]
Diameter: 50mm (base)
Weight: 65gr.
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 in the center of the photo.
F 4.
F 8.
F 16.
Closest focus is only 36cm from
outermost
edge of the lens, F 8. Focus on
the program wheel of the camera.
Already wide open
picture quality is o.k. in the center, it's soft in the edges. Stopped
down it's astonishing for such
a simple lens design. Have a look at the full resolution image
at F 16 and you know what I mean. The lens has good close focussing
capablities.
This lens comes from a Lomo Smena-8M, an entry level Russian camera.
Nevertheless it's a coated triplet. The Smena had only a zone focussing
device, this lens has apparently been transplanted to the focussing
barrel of an Industar 50-2 by a skilled Russian photo dealer/repair man
and then calibrated to M39 FFD. Focus is fine. It's an
extremely small and lightweight lens.
