USSRPhoto Wiki Catalog
Orion-15 28/6
It was produced in small quantities and is very uncommon now. The lens is very compact and its design does not require a lens shade. It is quite slow, but coated and produces sharp and contrasty images.
Focal length:28 mm
Aperture: 1:6 (settings from 6 to 22) Note: at max. aperture (1:6) the aperture is partially closed - this is Orion's design feature and it is normal.
Field of coverage: 75°
Focusing: 1 m - infinity
Filter size: M49x0.5 mm
Mount: M39x1 mm (LTM). The lens mounts and RF couples with any Leica or Leica copy (FED, Zorki, etc)
The glass is coated, the barrel has a polished aluminum/chrome finish
(Source: www.fedka.com)