N°1003110 · Family detail
SigmaWide·MINOLTA/SONY A mount
Sigma 20mm F/1.8 EX DG ASPH RF
Specifications01
MountMINOLTA/SONY A
Focal length20mm
Max aperturef/1.8
TypeWide · Prime
Weight520 g
Physical length90 mm
Min focus distance20 m
Summary02
Sigma 20mm F1.8 is a wide-angle prime lens for Sony A (Minolta A) mount, intended for general wide coverage such as landscapes and interiors. It has a maximum aperture of f/1.8 for low-light use.
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.