N°409302 · Family detail
SigmaTelephoto·SIGMA Y-S mount·1971
Sigma MF 135mm F/2.8
Specifications01
MountSIGMA Y-S
Focal length135mm
Max aperturef/2.8
TypeTelephoto · Prime
Release year1971
Weight450 g
Filter size52 mm
Min focus distance1.8 m
Max magnification0.3003
Aperture blades6
Optical elements4
Groups4
AutofocusNo
StabilizationNo
Aperture controlAperture ring (with or without Auto Exposure setting)
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeMedium telephoto prime lens
Field Notes02
135mm F/2.8 manual-focus telephoto lens for SIGMA Y-S mount, intended for portraits and general telephoto use. Multi-coated optics for reducing flare and improving contrast.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.