N°94854 · Family detail
PentaxFisheye·M42 mount·1963
Asahi Fish-eye-TAKUMAR 18mm F/11
Specifications01
MountM42
Focal length18mm
Max aperturef/11
TypeFisheye · Wide · Prime
Release year1963
Weight98 g
Min focus distance0.25 m
Optical elements4
Groups3
AutofocusNo
StabilizationNo
Aperture controlAperture ring
Lens hoodNot available
TeleconvertersNot available
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeFisheye lens
Summary02
Asahi Pentax M42 mount fisheye prime lens with 18mm focal length and fixed f/11 aperture. Intended for extreme wide-angle fisheye perspectives and stopped-down use.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The M42 screw 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
- Many M42 lenses close the aperture only when a pin at the rear is pressed. Use an adapter that presses the pin, or set the A/M switch to M.
- 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
Covers full-frame: it can vignette on a medium format sensor.
- 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
thelensdb.comVisit ↗
Other Mounts03
No alternate mounts are indexed for this family yet.