N°96255 · Family detail
PentaxTelephoto·PENTAX K mount·1987
Smc Pentax-F 135mm F/2.8
Specifications01
MountPENTAX K
Focal length135mm
Max aperturef/2.8
TypeTelephoto · Prime
Release year1987
Weight395 g
Filter size52 mm
Min focus distance0.7 m
Max magnification0.25
Aperture blades9
Optical elements8
Groups7
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodBuilt-in telescopic round
TeleconvertersPentax Rear Converter-A 1.4X-S→ 189mm F/3.9
Pentax Rear Converter-A 2X-S→ 270mm F/5.6
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeMedium telephoto prime lens
Field Notes02
Pentax K-mount 135mm prime lens with a maximum aperture of f/2.8. Used for portrait and general telephoto applications; the IF designation indicates internal focusing.
Other Mounts03
No alternate mounts are indexed for this family yet.