N°109707 · Family detail
SpiratoneMirror·KONICA AR mount
Spiratone Mirror 300mm F/5.6
Specifications01
Summary02
Spiratone mirror telephoto prime lens with a 300mm focal length and f/5.6 maximum aperture for long-distance photography. It uses a mirror design rather than conventional front elements.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Konica AR mount has a flange distance of 40.5 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Sony EAdapter · 22.5 mm
- Canon RFAdapter · 20.5 mm
- Nikon ZAdapter · 24.5 mm
- Fujifilm XAdapter · 22.8 mm
- L-MountAdapter · 20.5 mm
- Micro Four ThirdsAdapter · 21.25 mm
- Fujifilm G (GFX)Adapter · 13.8 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 22.5 mm
No plain adapter reaches infinity focus on: Canon EF, Nikon F.

Other Mounts03
This lens family is also indexed in 8 other mounts.
CANON FDView lens
Spiratone Mirror 300mm F/5.6
CONTAX/YASHICAView lens
Spiratone Mirror 300mm F/5.6
MINOLTA MDView lens
Spiratone Mirror 300mm F/5.6
MINOLTA SRView lens
Spiratone Mirror 300mm F/5.6
NIKON FView lens
Spiratone Mirror 300mm F/5.6
NIKON F DXView lens
Spiratone Mirror 300mm F/5.6
OLYMPUS OMView lens
Spiratone Mirror 300mm F/5.6
PENTAX KView lens
Spiratone Mirror 300mm F/5.6