N°99259 · Family detail
PentaxWide·PENTAX K mount·1975
Smc Pentax 18mm F/3.5
Specifications01
MountPENTAX K
Focal length18mm
Max aperturef/3.5
TypeWide · Prime
Release year1975
Weight328 g
Min focus distance0.25 m
Aperture blades5
Optical elements12
Groups11
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
Lens hoodPH-S58 - Clamp-on rectangular
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Summary02
This is a Pentax K-mount 18mm f/3.5 prime wide-angle lens for APS-C/“K” digital bodies and film use, intended for landscape and general wide views. Fixed aperture at f/3.5.
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
No alternate mounts are indexed for this family yet.