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Sigma 20mm F1.8 EX DG Aspherical RF for Canon

Optical Characteristics

With a 35mm equivalent focal length range of 32mm, this lens offers a standard wide perspective.

Recommended Applications

*Recommendations are based only on the features necessary to perform the application successfully and do not take into account the relative image quality of different lenses

Landscapes

Wide expanses and panoramas can be captured with this focal length. For this application aperture settings will usually vary from f5.6 and smaller and cameras will usually be tripod mounted.

Interiors

Wide angle lenses are a must to capture the look of a room when working in confined spaces. This lens’s fast aperture allows you to capture as much natural light as possible and the camera will usually be tripod mounted to use slower shutter speeds.

Technologies

ASP (Aspherical Lens)

The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.

RF (Rear Focus)

This lens is equipped with a system that moves the rear lens group for highspeed , silent focusing.

EX (EX Lens)

The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.

DG (DG Lens)

These are large-aperture lenses with wide angles and short minimum focusing distances. With an abundance of peripheral illumination, they are ideal lenses for Digital SLR Cameras whilst retaining suitability for traditional 35mm SLRs.

Specifications

35mm equivalent focal length range: 32mm
Lens perspective: Standard wide
Minimum aperture: f22
Image stabilisation: None
Hyper-Sonic motor: No
Special lens elements: 2 aspherical
Filter size: 82mm
Weight: 520g
Dimensions: 88.5 x 87
Maximum magnification: 1:4
Recommended applications: Landscapes, Interiors

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