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Pros Pros
  • Smooth, attractive bokeh and depth-of-field control
  • Excellent build quality and weather sealing
  • Bright f/1.2 aperture for low-light shooting
  • Accurate and quiet ring-type USM autofocus
  • Strong color rendition and contrast
Cons Cons
  • High price relative to other options
  • Softness and low contrast at wide apertures
  • Significant chromatic aberration and color fringing
  • Dated optical design with distortion and focus issues
  • Heavy vignetting and corner light fall-off

Launch price Launch price $1,599
Focal length & aperture Focal length & aperture 50mm f/1.2
Mount & coverage Mount & coverage Canon EF · Full-Frame
Stabilization Stabilization None
Close focus Close focus 45 cm (0.15x)
Filter thread Filter thread 72mm
Autofocus motor Autofocus motor Ring-type ultrasonic
Weight & size Weight & size 580g (1 lb 4.5 oz) · 85.8 x 65.5 mm (3.38 x 2.58 in)

Announcement date Announcement date August 24, 2006
Launch MSRP Launch MSRP $1,599
Lens mount Lens mount Canon EF
Image circle coverage Image circle coverage Full-Frame

Elements Elements 8
Groups Groups 6

Focal length (wide) Focal length (wide) 50mm
Focal length (tele) Focal length (tele) 50mm
Max aperture Max aperture f/1.2
Minimum aperture Minimum aperture f/16
Diaphragm blades Diaphragm blades 8

Diagonal angle of view Diagonal angle of view 46°

Autofocus motor Autofocus motor Ring-type ultrasonic
Minimum focus distance Minimum focus distance 45 cm
Maximum magnification Maximum magnification 0.15x
Focus mechanism Focus mechanism Internal focus
Depth of field scale Depth of field scale Yes

Optical stabilization (OIS) Optical stabilization (OIS) No

Weight Weight 580g (1 lb 4.5 oz)
Maximum diameter Maximum diameter 85.8mm (3.38 in)
Length Length 65.5mm (2.58 in)
Filter thread Filter thread 72mm
Weather sealing Weather sealing None