Performance:
 
Focal Length: 50 mm 
Aperture  Maximum: f/1.4
Minimum: f/22 
Camera Mount Type: Canon EF 
Format Compatibility: 35mm Film / Full-Frame Digital Sensor, Canon (APS-C) 
Angle of View: 46° 
Minimum Focus Distance: 1.5' (45cm) 
Magnification: 0.15x 
Maximum Reproduction Rati 1:6.6 
Groups/Elements: 6/7 
Diaphragm Blades: 8 

Features
 
Image Stabilization; No 
Autofocus: Yes 
Tripod Collar: No 

Physical Characteristics

Filter Thread: 58 mm 
Dimensions (DxL): Approx. 2.9 x 2.0" (7.37 x 5.08cm) 
Weight: 10.23 oz (290g)