N°106687 · Family detail
TomiokaWide·M42 mount
Tomioka Auto Tominon 21mm F/3.5
Specifications01
MountM42
Focal length21mm
Max aperturef/3.5
TypeWide · Prime
Filter size72 mm
Min focus distance0.3 m
Aperture blades6
Optical elements9
Groups8
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Field Notes02
21mm F/3.5 prime wide-angle lens for M42 screw mount. Typically used for landscape and general wide-angle photography; manual-focus design for fixed 21mm framing.
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Other Mounts03
No alternate mounts are indexed for this family yet.