N°96860 · Family detail
PentaxTelephoto·PENTAX 645 mount·1985
Smc Pentax 645 135mm F/4 LS
Specifications01
MountPENTAX 645
Focal length135mm
Max aperturef/4
TypeTelephoto · Prime
Release year1985
Weight467 g
Filter size58 mm
Min focus distance1.25 m
Optical elements5
Groups5
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
Lens hoodRH-A58 - Screw-type round
TeleconvertersPentax Rear Converter-A 645 2X→ 270mm F/8
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeShort telephoto prime lens
Summary02
Pentax 645 135mm f/4 SMC is a medium-format prime telephoto lens for portraits and general telephoto use on the Pentax 645 system. It has a maximum aperture of f/4.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Pentax 645 mount has a flange distance of 70.87 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Pentax 645 DA lenses have no aperture ring. Use an adapter with its own aperture control.
- Sony EAdapter · 52.87 mm
- Canon RFAdapter · 50.87 mm
- Nikon ZAdapter · 54.87 mm
- Fujifilm XAdapter · 53.17 mm
- L-MountAdapter · 50.87 mm
- Micro Four ThirdsAdapter · 51.62 mm
- Fujifilm G (GFX)Adapter · 44.17 mm
- Canon EF-MAdapter · 52.87 mm
- Canon EFAdapter · 26.87 mm
A rear element that sticks out can hit the camera mirror.
- Nikon FAdapter · 24.37 mm
A rear element that sticks out can hit the camera mirror.
Other Mounts03
No alternate mounts are indexed for this family yet.