N°1023221 · Family detail
SigmaZoom·MINOLTA/SONY A mount·1988
Sigma 28-70mm F/3.5-4.5
Specifications01
MountMINOLTA/SONY A
Focal length28-70mm
Max aperturef/3.5
TypeZoom
Release year1988
Weight460 g
Filter size52 mm
Min focus distance0.53 m
Max magnification0.1493
Aperture blades6
Optical elements9
Groups9
Min aperturef/4.5
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera(Minolta/Sony A, Olympus OM AF, Yashica MA)
Aperture ring (Manual settings + Auto Exposure setting)(Nikon F, Pentax K)
Lens hoodBayonet-type round
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard zoom lens
Summary02
Sigma 28-70mm zoom lens for Minolta/Sony A-mount, with a variable maximum aperture of f/3.5-4.5. Suited to general-purpose photography across wide-to-short-tele focal lengths.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Minolta / Sony A mount has a flange distance of 44.5 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- A-mount lenses have no aperture ring. Use an adapter with its own aperture control, or an electronic adapter.
- DT lenses cover APS-C only.
- Sony EAdapter · 26.5 mm
- Canon RFAdapter · 24.5 mm
- Nikon ZAdapter · 28.5 mm
- Fujifilm XAdapter · 26.8 mm
- L-MountAdapter · 24.5 mm
- Micro Four ThirdsAdapter · 25.25 mm
- Fujifilm G (GFX)Adapter · 17.8 mm
- Canon EF-MAdapter · 26.5 mm
No plain adapter reaches infinity focus on: Canon EF, Nikon F.
Other Mounts03
This lens family is also indexed in 3 other mounts.