N°100937 · Family detail
SigmaZoom·OLYMPUS OM mount

Sigma 28-70mm F/2.8-4 UC

Specifications01

Focal length28-70mm
Max aperturef/2.8
TypeZoom

Summary02

Sigma UC 28-70mm zoom for Olympus OM mount, with a variable max aperture of f/2.8–f/4. Intended for general-purpose photography across wide-to-short telephoto focal lengths.

AI-assisted summary — verify against linked sources

Specifications from kentfaith

Where can this lens be adapted?

The Olympus OM mount has a flange distance of 46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

  • Sony EAdapter · 28 mm
  • Canon RFAdapter · 26 mm
  • Nikon ZAdapter · 30 mm
  • Fujifilm XAdapter · 28.3 mm
  • L-MountAdapter · 26 mm
  • Micro Four ThirdsAdapter · 26.75 mm
  • Fujifilm G (GFX)Adapter · 19.3 mm

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

  • Canon EF-MAdapter · 28 mm
  • Canon EFAdapter · 2 mm

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

No plain adapter reaches infinity focus on: Nikon F.

Sources03

kentfaith.esVisit ↗
allphotolenses.comVisit ↗