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Pros Pros
  • Exceptional sharpness and image quality
  • Highly effective hybrid image stabilization
  • Fast, silent, and accurate autofocus
  • Excellent bokeh and minimal distortion
  • Solid, weather-resistant build quality
Cons Cons
  • Build quality feels plasticky despite L-series branding
  • Noticeable vignetting and corner softness at f/2.8
  • High price point compared to non-stabilized alternatives
  • Issues with lens hood design and focus breathing
  • Reduced stabilization effectiveness at close macro distances

Launch price Launch price $1,049
Focal length & aperture Focal length & aperture 100mm f/2.8
Mount & coverage Mount & coverage Canon EF · Full-Frame
Stabilization Stabilization Optical IS, 4 stops (CIPA)
Close focus Close focus 30 cm (1x)
Filter thread Filter thread 67mm
Autofocus motor Autofocus motor Ring-type ultrasonic
Weight & size Weight & size 625g (1 lb 6 oz) · 77.7 x 123 mm (3.06 x 4.84 in)

Announcement date Announcement date August 31, 2009
Launch MSRP Launch MSRP $1,049
Lens mount Lens mount Canon EF
Image circle coverage Image circle coverage Full-Frame
Lens type Lens type Macro

Elements Elements 15
Groups Groups 12

Focal length (wide) Focal length (wide) 100mm
Focal length (tele) Focal length (tele) 100mm
Max aperture Max aperture f/2.8
Minimum aperture Minimum aperture f/32
Diaphragm blades Diaphragm blades 9

Diagonal angle of view Diagonal angle of view 24°

Autofocus motor Autofocus motor Ring-type ultrasonic
Minimum focus distance Minimum focus distance 30 cm
Maximum magnification Maximum magnification 1x
Focus mechanism Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) Yes
OIS rating OIS rating 4 stops

Weight Weight 625g (1 lb 6 oz)
Maximum diameter Maximum diameter 77.7mm (3.06 in)
Length Length 123mm (4.84 in)
Filter thread Filter thread 67mm
Weather sealing Weather sealing None
Tripod collar Tripod collar Included
Maximum extended length Maximum extended length 123mm