Designed to match the APS-C size image sensors of Canon digital SLR cameras, the Sigma 30mm f/ 1.4 lens is an ideal choice for a wide range of applications, including snapshots, portraiture, indoor shooting, and landscape photography. The 30mm lens relies on two special-low-dispersion glass elements and a glass-mold aspherical lens. Combined, the construction details correct for all types of chromatic and color aberrations. The lens is also equipped with a Hyper Sonic Motor (HSM) that supports quiet, high-speed autofocus, but also turns off should you prefer full-time manual focusing.
Other features include a maximum aperture of f/ 1.4, a 62mm filter mount, and a one-year warranty.
Specifications
Focal length: 30mm
Maximum aperture: f/ 1.4
Lens construction: 7 elements in 7 groups
Angle of view: 45 degrees (SD format)
Number of diaphragm blades: 8
Minimum aperture: f/16
Minimum focusing distance: 15.7 inches
Maximum magnification: 1:10.
4 Filter size: 62mm
Corresponding AF mounts: Canon
Dimensions: 2.97 inches in diameter and 2.3 inches long
Weight: 15.2 ounces
Warranty: 1 year
The accessories are: two 62mm filters, the hood, the front cap and the rear cap. '