N°8677456 · Family detail
PentaxTelephoto·PENTAX 645 mount·1997
Smc Pentax-FA* 645 300mm F/4 ED [IF]
Specifications01
MountPENTAX 645
Focal length300mm
Max aperturef/4
TypeTelephoto · Prime
Release year1997
Weight1490 g
Filter size77 mm
Min focus distance3 m
Max magnification0.1099
Aperture blades8
Optical elements8
Groups8
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodPH-RBE77 - Bayonet-type round
With filter access window
TeleconvertersPentax Rear Converter-A 645 1.4X→ 420mm F/5.6
Pentax Rear Converter-A 645 2X→ 600mm F/8
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeMedium telephoto prime lens
Field Notes02
Pentax 645 medium-format telephoto prime lens with a 300mm focal length and f/4 maximum aperture. Designed for portrait, sports, and other distant subjects on Pentax 645 systems.
AI-assisted summary — verify against linked sources![Smc Pentax-FA* 645 300mm F/4 ED [IF]](https://img.lens-database.com/lenses/variants/v1/9521e57b7ae3b36e2d05c2b9fe9aa407458d881859cd2f15219b61238fa0fbbd/5b1d60b4cd5f2e5b08ab41ac822e593996e289862dd82611826917c00006facd/1600x1067/1280.webp)
Other Mounts03
No alternate mounts are indexed for this family yet.