N°431287 · Family detail
RolleiWide·ROLLEI QBM mount·1977
Rolleinar-MC 21mm F/4
Specifications01
MountROLLEI QBM
Focal length21mm
Max aperturef/4
TypeWide · Prime
Release year1977
Weight245 g
Filter size58 mm
Min focus distance0.45 m
Aperture blades5
Optical elements9
Groups8
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
TeleconvertersNot compatible
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Field Notes02
21mm f/4 wide-angle lens for Rollei QBM mount, intended for wide scenic or interior shots. Uses a fixed maximum aperture of f/4.
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Other Mounts03
No alternate mounts are indexed for this family yet.