N°95430 · Family detail
SigmaTelephoto·PENTAX K mount

Sigma AF 120-400mm F/4.5-5.6 APO DG OS HSM

Specifications01

Focal length120-400mm
Max aperturef/4.5
TypeTelephoto · Zoom

Summary02

Sigma AF 120-400mm F/4.5-5.6 APO DG OS HSM is a Pentax K mount telephoto zoom. It covers medium to long reach for wildlife and sports, with optical stabilization.

AI-assisted summary — verify against linked sources

Specifications from kentfaith

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

kentfaith.esVisit ↗
allphotolenses.comVisit ↗