Focal length - 135mm
Max. aperture - f/4.0
Min. aperture - f/22
Blades - 12
Min. Focus (m.) - 1.4
Prime Lens - outstanding build quality.
The quality of lenses, aperture pre-selection, focus ring work - exellent.
Perfection of the performance in every detail.
Zeiss Sonnar copy.
Unfortunately, my camera despite using an adapter ring with the standard M39 to M42, I am not able to get the focusing to infinity. Maximum focus distance is about 200 m. In the future, I intend to buy a compact camera with interchangeable lenses. For example, the Sony Nex series, Olympus Pen, Nikon One. These systems allow using appropriate adapters to use lenses in the M39. These cameras can get the focus to infinity.
A very true colors. Outstanding image vividness.
A very pleasant to use. Quick and precise.
Build quality: ★★★★★
Here are some sample pictures.
They were made with Sony Alpha 300.
Pictures were taken with aperture F/4 ISO-100 to 200
All photos without amendment in graphics programs.