Attention: This is an APS-C lens and not compatible with full frame. 

The Sigma 50-100mm f/1.8 DC HSM Art Lens for Canon EF lens has a Canon EF mount and is made for APS-C bodies. The lens weighs 1.4 kg. The front filter thread is 82mm. The minimum focus distance is around 95 cm. Thanks to its Hyper Sonic Motor (HSM), this lens has a quiet, smooth and accurate autofocus.

In addition, the lens does not shift while you focus or zoom. The lens is conveniently fitted with a compact and durable tabletop tripod with 90-degree click stops. The lens consists of 21 elements in 15 groups. The aperture has 9 blades for a round bokeh. The angle of view is 31.7° to 16.2°. The lens dimensions are 93.5 x 170.7 mm. It weighs 1490 g.

Performance
Focal Length	50 - 100mm Comparable 35mm Focal Length: 80 - 160 mm
Aperture	Maximum: f/1.8 Minimum: f/16
Camera Mount Type	Canon EF
Format Compatibility	APS-C
Angle of View	31.7° - 16.2°
Minimum Focus Distance	3.12' (95 cm)
Maximum Reproduction Ratio	1:6.7
Elements/Groups	21/15
Diaphragm Blades	9, Rounded

Features
Autofocus	Yes
Tripod Collar	Yes Fixed - rotating

Physical
Filter Thread	Front: 82 mm
Dimensions (DxL)	Approx. 3.68 x 6.72" (93.5 x 170.7 mm)
Weight	3.28 lb (1490 g)