N°1025723 · Family detail
SearsTelephoto·CONTAX/YASHICA mount
Sears 300mm F/5.6 MC
Specifications01
Summary02
300mm f/5.6 telephoto lens (Sears “MC”) for the Contax/Yashica mount. Intended for distant subjects such as wildlife and sports; a manual-focus design typical of older telephotos.
AI-assisted summary — verify against linked sourcesWhere 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.
No plain adapter reaches infinity focus on: Nikon F.

Other Mounts03
This lens family is also indexed in 8 other mounts.