This is a 23mm F1.4 prime lens for APS-C mirrorless cameras with a Sony E-Mount. Its angle of view is equivalent to 35mm on a 35mm-format camera. The large F1.4 aperture gives resolution from the maximum aperture and soft background blur.
The optics use 13 elements in 10 groups, including 3 SLD glass elements and 2 aspherical elements. Countermeasures against flare and ghosting help with clear shooting in backlit scenes. The body is compact and lightweight, and it is made at Sigma's production facility in Aizu, Japan.
Autofocus is driven by a quiet, high-speed stepping motor. The lens suits landscapes, portraits and tabletop photography.
- Mount
- Sony E-Mount
- Format coverage
- APS-C
- Focal length
- 23mm (34.5mm 35mm equivalent)
- Aperture
- Maximum f/1.4, minimum f/16
- Angle of view
- 63.4°
- Construction
- 13 elements in 10 groups, including 3 SLD and 2 aspherical elements
- Aperture blades
- 9, rounded diaphragm
- Minimum focus
- 25 cm / 9.8 in
- Max magnification
- 1:7.3
- Autofocus
- Stepping motor
- Filter size
- 52mm
- Type
- Wide, not macro
- Color
- Black
- Dimensions