N°109491 · Family detail
PentaxTelephoto·PENTAX 645 mount·1997
Smc Pentax-FA* 645 300mm F/4 ED
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 prime telephoto lens with a 300mm focal length and constant f/4 maximum aperture, intended for distant subjects such as portraits and sports. Uses ED (extra-low dispersion) optics.
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Other Mounts03
No alternate mounts are indexed for this family yet.