The Canon EF 50mm f/1.2L USM is a compact lens with an impressive f/1.2 speed and an EF mount. Therefore, it performs well in low light. Thanks to the f-stop, there is the possibility to get a short depth of field with a well isolated subject and a nice round bokeh thanks to the 8 blades. 

With the USM autofocus motor, focusing is quite fast and with almost no noise. The lens has several aspherical elements and also special coating for minimal aberrations, flare and ghosting. The minimum focusing distance of the lens is 45cm and it is composed of 8 elements in 6 groups. 

Finally, the dimension of the lens is 85.8 x 65.5 mm, it has a filter thread of 72mm and weighs 580 g.  

Performance
Focal Length	50mm
Aperture	Maximum: f/1.2 Minimum: f/16
Camera Mount Type	Canon EF
Format Compatibility	35mm Film / Full-Frame Digital Sensor Canon (APS-C)
Angle of View	46°
Minimum Focus Distance	45 cm
Magnification	0.15x
Maximum Reproduction Ratio	1:7
Elements/Groups	8/6
Diaphragm Blades	8

Features
Image Stabilization	No
Autofocus	Yes
Tripod Collar	No

Physical
Filter Thread	Front: 72 mm
Dimensions (DxL)	Approx. 85.8 x 65.5 mm
Weight	590 g