N°160865 · Family detail
TomiokaPortrait·M42 mount·1973
Tomioka Auto Yashinon DS-M 55mm F/1.2
Specifications01
MountM42
Focal length55mm
Max aperturef/1.2
TypePortrait · Prime
Release year1973
Weight340 g
Filter size55 mm
Min focus distance0.5 m
Aperture blades8
Optical elements7
Groups6
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard prime lens
Field Notes02
Tomioka Yashinon DS-M is a 55mm prime lens for M42 mount with a maximum aperture of f/1.2, intended for portrait and low-light use with shallow depth of field.
AI-assisted summary — verify against linked sourcesOther Mounts03
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