Canon EF 50mm f/1.4 USM

This lens is an EF 50mm 1.4 USM.

Features

Focal length and maximum aperture: 50 mm f1.4
Lens construction: 7 elements in 6 groups
Diagonal angle of view: 46°
Focus adjustment: Overall linear extension system with USM
Closest focusing distance: 0.45m / 1.5ft
Filter size: 58mm

Crisp images with little flare are obtained even at the maximum aperture

This standard lens features superb quality and portability. Two high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference.
If crisp images with little flare are important to you, they can be obtained even at the maximum aperture with this robust lens..

Photo Quote: There is nothing worse than a sharp image of a fuzzy concept. - Ansel Adams