N°110420 · Family detail
PentaxTelephoto·PENTAX K mount·1997
Smc Pentax-FA* 400mm F/5.6 ED
Specifications01
MountPENTAX K
Focal length400mm
Max aperturef/5.6
TypeTelephoto · Prime
Release year1997
Weight1140 g
Filter size77 mm
Min focus distance2 m
Max magnification0.2299
Aperture blades8
Optical elements9
Groups8
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodMH-RBB77 - Bayonet-type round
TeleconvertersPentax Rear Converter-A 1.4X-S→ 560mm F/7.8
Pentax Rear Converter-A 2X-S→ 800mm F/11.2
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeSuper telephoto prime lens
Field Notes02
Pentax K-mount prime telephoto lens with 400mm focal length and maximum aperture f/5.6. Intended for distant subjects such as wildlife and sports.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.