Focal length: 28mm
Maximum aperture: f/2.8
Lens construction: 5 elements in 5 groups
Diagonal angle of view: 75 degrees
Focus adjustment: Overall linear extension system with AFD
Close focusing distance: 1 foot
Filter size: 52mm
Corresponding mounts: Canon
Dimensions: 2.7 inches in diameter and 1.7 inches long
Weight: 6.5 ounces