These lenses have an EF type mount that fits the Canon EOS line of cameras.
It will commonly be found in the kits of photographers that shoot wedding, birthdays, and other events involving people.
These photographers would also carry a 70-200mm for complementing the longer focal lengths and when extremely shallow depth of field is not needed.
This lens is constructed with a metal body and mount, and with rubber gripping and plastic extremities.
This lens uses a floating front extension focusing system, powered by a ring type USM motor.
The newer EF 85mm f/1.2L II USM version, which is aesthetically the same as the EF 85 mm f/1.2L USM, is updated with a newer CPU, 1.8 times faster autofocus, and upgraded anti-reflective lens coatings to reduce chromatic aberration, ghosting, and lens flare.
[2] This lens was used prominently in the independent feature film Marianne which was shot using a Canon EOS 7D.
An 8 blade, maximum aperture of f/1.8, gives this lens the ability to create depth of field effects.
The lens also generates purple fringing in high-contrast lighting, with subjects such as chrome, water, and black-and-white scenes.