N°117435 · Family detail
Isco-GottingenTelephoto·EXAKTA mount·1954
Isco-Gottingen WESTAR 100mm F/4.5
Specifications01
MountEXAKTA
Focal length100mm
Max aperturef/4.5
TypeTelephoto · Prime
Release year1954
Min focus distance1.5 m
Aperture blades10
Optical elements3
Groups3
AutofocusNo
StabilizationNo
Aperture controlAperture ring
Production statusDiscontinued
Additional Info02
Lens TypePrime lens
Summary02
Isco-Gottingen WESTAR is a 100mm fixed focal-length prime lens for the Exakta mount with a maximum aperture of f/4.5. Likely intended for general-purpose telephoto-style use or portrait/close-detail work.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Exakta mount has a flange distance of 44.7 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Sony EAdapter · 26.7 mm
- Canon RFAdapter · 24.7 mm
- Nikon ZAdapter · 28.7 mm
- Fujifilm XAdapter · 27 mm
- L-MountAdapter · 24.7 mm
- Micro Four ThirdsAdapter · 25.45 mm
- Fujifilm G (GFX)Adapter · 18 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 26.7 mm
No plain adapter reaches infinity focus on: Canon EF, Nikon F.
Sources03
thelensdb.comVisit ↗
Other Mounts03
This lens family is also indexed in 1 other mount.