N°109011 · Family detail
MamiyaTelephoto·MAMIYA RB67 mount·1974
Mamiya-Sekor NB 90mm F/3.8
Specifications01
MountMAMIYA RB67
Focal length90mm
Max aperturef/3.8
TypeTelephoto · Prime
Release year1974
Filter size77 mm
Max magnification0.5
Optical elements7
Groups6
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
Lens hoodScrew-type round
TeleconvertersNot available
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard prime lens
Field Notes02
90mm F/3.8 Mamiya-Sekor lens for the RB67 medium-format system. A short-telephoto prime intended for portraiture and general telephoto use.
AI-assisted summary — verify against linked sourcesOther Mounts03
No alternate mounts are indexed for this family yet.