N°109687 · Family detail
SearsTelephoto·M42 mount

Sears 300mm F/5.6 MC

Specifications01

MountM42
Focal length300mm
Max aperturef/5.6
TypeTelephoto · Prime

Summary02

Sears 300mm F/5.6 MC is an M42 mount prime telephoto lens. It uses a fixed 300mm focal length and f/5.6 maximum aperture for distant subjects like sports or wildlife.

AI-assisted summary — verify against linked sources

Specifications from kentfaith

Where can this lens be adapted?

The M42 screw mount has a flange distance of 45.46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

  • Many M42 lenses close the aperture only when a pin at the rear is pressed. Use an adapter that presses the pin, or set the A/M switch to M.
  • Sony EAdapter · 27.46 mm
  • Canon RFAdapter · 25.46 mm
  • Nikon ZAdapter · 29.46 mm
  • Fujifilm XAdapter · 27.76 mm
  • L-MountAdapter · 25.46 mm
  • Micro Four ThirdsAdapter · 26.21 mm
  • Fujifilm G (GFX)Adapter · 18.76 mm

    Covers full-frame: it can vignette on a medium format sensor.

  • Canon EF-MAdapter · 27.46 mm
  • Canon EFAdapter · 1.46 mm

    A rear element that sticks out can hit the camera mirror.

No plain adapter reaches infinity focus on: Nikon F.

Sources03

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