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
Field Notes02
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 sources
Other Mounts03
No alternate mounts are indexed for this family yet.