N°97572 · Family detail
PentaxTelephoto·PENTAX 645 mount·1984
Smc Pentax-A 645 150mm F/3.5
Specifications01
MountPENTAX 645
Focal length150mm
Max aperturef/3.5
TypeTelephoto · Prime
Release year1984
Weight440 g
Filter size58 mm
Min focus distance1.4 m
Aperture blades8
Optical elements4
Groups4
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodBuilt-in telescopic round
TeleconvertersPentax Rear Converter-A 645 2X→ 300mm F/7
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeShort telephoto prime lens
Summary02
Pentax-A 645 is a 150mm prime portrait/telephoto lens for the Pentax 645 medium-format system, with a maximum aperture of f/3.5.
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.