N°92719 · Family detail
SpiratonePortrait·PENTAX K mount
Spiratone 85mm F/1.7
Specifications01
Summary02
Spiratone 85mm F/1.7 is a Pentax K-mount prime lens with a bright wide maximum aperture for shallow depth of field and low-light portraits. It is a fixed-focal-length portrait/low-light lens.
AI-assisted summary — verify against linked sourcesWhere 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.

Other Mounts03
This lens family is also indexed in 9 other mounts.
CANON FDView lens
Spiratone 85mm F/1.7
CONTAX/YASHICAView lens
Spiratone 85mm F/1.7
KONICA ARView lens
Spiratone 85mm F/1.7
MINOLTA MDView lens
Spiratone 85mm F/1.7
MINOLTA SRView lens
Spiratone 85mm F/1.7
NIKON FView lens
Spiratone 85mm F/1.7
NIKON F DXView lens
Spiratone 85mm F/1.7
OLYMPUS OMView lens
Spiratone 85mm F/1.7
SIGMA Y-SView lens
Spiratone 85mm F/1.7