N°108956 · Family detail
TopconTelephoto·TOPCON mount·1958
Tokyo Kogaku R. Topcor 90mm F/3.5
Specifications01
MountTOPCON
Focal length90mm
Max aperturef/3.5
TypeTelephoto · Prime
Release year1958
Weight190 g
Filter size49 mm
Min focus distance1 m
Aperture blades10
Optical elements3
Groups3
AutofocusNo
StabilizationNo
Aperture controlPreset ring + Aperture ring
Lens hood51mm - Snap-on round
TeleconvertersNot available
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeShort telephoto prime lens
Field Notes02
Topcon R. Topcor 90mm F/3.5 is a fixed focal-length telephoto lens for portrait and medium-tele use. It has a maximum aperture of f/3.5 for moderate low-light performance.
AI-assisted summary — verify against linked sourcesOther Mounts03
No alternate mounts are indexed for this family yet.