N°94433 · Family detail
SigmaZoom·PENTAX K mount

Sigma 28-105mm F/3.8-5.6 ASPH IF UC-III ZEN

Specifications01

Focal length28-105mm
Max aperturef/3.8
TypeZoom

Summary02

Sigma 28-105mm zoom lens for Pentax K mount with a variable maximum aperture from f/3.8 to f/5.6. Suitable for general-purpose photography across wide-to-short-tele ranges.

AI-assisted summary — verify against linked sources

Specifications from lensdb

Where can this lens be adapted?

The Pentax K 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

  • Pentax DA and FA J lenses have no aperture ring. Use an adapter with its own aperture control.
  • Pentax DA lenses are made for APS-C.
  • 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
  • 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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