N°100921 · Family detail
SigmaZoom·CANON FD mount·1994
Sigma MF 28-70mm F/2.8-4 UC ZEN
Specifications01
MountCANON FD
Focal length28-70mm
Max aperturef/2.8
TypeZoom
Release year1994
Weight285 g
Filter size55 mm
Min focus distance0.5 m
Max magnification0.1639
Aperture blades7
Optical elements11
Groups8
Min aperturef/4
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard zoom lens
Summary02
Sigma UC ZEN zoom lens for Canon FD, covering 28–70mm. Variable maximum aperture ranges from f/2.8 at 28mm to f/4 at 70mm; used for general-purpose photography including standard focal lengths.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Canon FD mount has a flange distance of 42 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- FD lenses stay at full aperture until the camera moves a lever on the lens. Use an FD adapter with a ring that moves this lever.
- Sony EAdapter · 24 mm
- Canon RFAdapter · 22 mm
- Nikon ZAdapter · 26 mm
- Fujifilm XAdapter · 24.3 mm
- L-MountAdapter · 22 mm
- Micro Four ThirdsAdapter · 22.75 mm
- Fujifilm G (GFX)Adapter · 15.3 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 24 mm
No plain adapter reaches infinity focus on: Canon EF, Nikon F.
Other Mounts03
This lens family is also indexed in 4 other mounts.