The Sigma 56mm f/1.4 DC DN Contemporary is a portrait-length prime lens for APS-C-format Sony E-mount mirrorless cameras. Its 56mm focal length gives an 84mm equivalent field of view in 35mm terms. The f/1.4 maximum aperture suits difficult lighting and gives more control over depth of field, for isolating subjects and working with selective focus.
The optical design uses two aspherical elements and one SLD element to reduce spherical and chromatic aberrations. A Super Multi-Layer Coating suppresses flare and ghosting, which helps maintain contrast and color accuracy in strong lighting. The diaphragm has nine rounded blades, and the construction is weather-sealed.
A stepping AF motor drives autofocus. It is quick, precise and near-silent, which suits both photo and video work.
- Mount
- Sony E-mount
- Format
- APS-C
- Focal length
- 56mm (84mm 35mm equivalent)
- Aperture range
- f/1.4 to f/16
- Optical elements
- 2 aspherical elements, 1 SLD element
- Coating
- Super Multi-Layer Coating
- Autofocus
- Stepping motor AF system
- Diaphragm
- Rounded 9-blade
- Construction
- Weather-sealed