Focus Min(cm) - 70
Aperture Max - 2.8
Aperture Min. - 16
Filter Size (mm) - 49
Number of baldes - 10
Little curiosity about the Soviet lenses and serial numbers:
"000xxxxxx factory test (study) models (prototypes etc) modeles d'études
d'usine (prototypes etc..)
00xxxxxx preseries models reserved for members of the communist party
and "VIPs" (reservés aux membres du parti communist et haut
responsables en pré-série)
0xxxxxx reserved for factory syndicat leaders (réservés aux
responsables syndicaux d'usines) "*
* - http://forum.mflenses.com/viewtopic.php?t=3332
Not that sharp at wider apertures. Weird bokeh. Flares a lot. Great close-focus.
Works fine! Some people hate the focus ring move to easy.
Build quality: ★★★★☆
Small, light, very neat.
Market value / value of subjective: ★★★★★
Here are some sample pictures.
They were made with Sony Alpha 300.
Pictures were taken with aperture F/4 ISO-100.
All photos without amendment in graphics programs.
Pictures were taken with aperture F/5.6 ISO-100.
Panorama merged in a graphics program without any changes in the images themselves.