Ohnar 300mm F/5.6 Mirror

Specifications01

MountCONTAX/YASHICA

Focal length300mm

Max aperturef/5.6

TypeMirror · Telephoto · Prime

Summary02

Ohnar 300mm F/5.6 is a mirror (catadioptric) telephoto lens for the Contax/Yashica mount. It uses a fixed aperture of f/5.6 and is intended for distant subjects such as sports or wildlife.

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Specifications from kentfaith

Where can this lens be adapted?

The Contax / Yashica mount has a flange distance of 45.5 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

Sony EAdapter · 27.5 mm
Canon RFAdapter · 25.5 mm
Nikon ZAdapter · 29.5 mm
Fujifilm XAdapter · 27.8 mm
L-MountAdapter · 25.5 mm
Micro Four ThirdsAdapter · 26.25 mm
Fujifilm G (GFX)Adapter · 18.8 mm
Covers full-frame: it can vignette on a medium format sensor.
Canon EF-MAdapter · 27.5 mm
Canon EFAdapter · 1.5 mm
A rear element that sticks out can hit the camera mirror.