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Certified Keeper Olympus M.Zuiko Digital ED 12-40mm f/2.8 PRO
90 PixelMeter Score 20 reviews

Pros Pros
  • Fast, silent, and accurate autofocus
  • Versatile manual focus clutch and close-focusing capabilities
  • Exceptional sharpness and contrast throughout the zoom range
  • Sturdy, weather-sealed build quality
  • Constant f/2.8 aperture in a compact form factor
Cons Cons
  • Noticeable vignetting and light falloff at wide-open apertures
  • Performance softness or distortion at specific focal extremes
  • Lack of built-in optical image stabilization
  • Relatively large and heavy for the system
  • Susceptibility to flare and internal reflections in certain lighting

Launch price Launch price $999.99
Focal length & aperture Focal length & aperture 12-40mm f/2.8
Mount & coverage Mount & coverage Micro Four Thirds · Micro Four Thirds
Stabilization Stabilization None
Close focus Close focus 20 cm (0.3x)
Filter thread Filter thread 62mm
Weight & size Weight & size 382g (13.5 oz) · 69.9 x 84 mm (2.75 x 3.31 in)

Announcement date Announcement date September 10, 2013
Launch MSRP Launch MSRP $999.99
Lens mount Lens mount Micro Four Thirds
Image circle coverage Image circle coverage Micro Four Thirds
Lens line / series Lens line / series PRO

Elements Elements 14
Groups Groups 9

Focal length (wide) Focal length (wide) 12mm
Focal length (tele) Focal length (tele) 40mm
Max aperture Max aperture f/2.8
Minimum aperture Minimum aperture f/22
Diaphragm blades Diaphragm blades 7

Diagonal angle of view Diagonal angle of view 84° - 30°

Minimum focus distance Minimum focus distance 20 cm
Maximum magnification Maximum magnification 0.3x
Focus mechanism Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) No

Weight Weight 382g (13.5 oz)
Maximum diameter Maximum diameter 69.9mm (2.75 in)
Length Length 84mm (3.31 in)
Filter thread Filter thread 62mm
Weather sealing Weather sealing None
Maximum extended length Maximum extended length 4.44mm