Focal length: 40mm
Aperture: F 4 - F 16
Min focus distance: 0.65m
Length (from flange): 26/31mm [+ 11mm for the adapter]
Diameter: 50mm (base)
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
dish in the center of the photo.
Closest focus is only 36cm from
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
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.