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Black weather-sealed zoom lens with silver focus ring and f/2.8 aperture marking

Olympus America Inc.

Olympus America Inc. M.Zuiko Digital ED 12-40mm f/2.8 PRO II camera accessory

SKU CH-EF1K-794AH

A compact, weather-sealed zoom covering 12-40mm at f/2.8 focuses as close as 20cm for high-resolution wide-angle to mid-telephoto shots

  • TypeAccessory
  • Close focus at 20cm captures fine detail across the frame
  • Constant f/2.8 aperture maintains brightness throughout the zoom range
  • Weather-sealed construction protects the lens in challenging conditions
  • Compact and lightweight design fits easily in any gear bag
  • Versatile 12-40mm range covers wide-angle to mid-telephoto needs

OM SYSTEM M.Zuiko 12-40mm f/2.8 PRO II Lens

The OM SYSTEM M.Zuiko Digital ED 12-40mm f/2.8 PRO II is a new, weather-sealed zoom lens designed for Micro Four Thirds cameras. It covers a versatile wide-angle to mid-range telephoto focal length while maintaining a constant f/2.8 aperture. Its compact and lightweight construction makes it suitable for everyday carry in a gear bag.

Photographers needing close focus

This lens suits photographers who require a bright zoom for landscapes, events, or travel with the ability to focus as close as 20cm. It is not for users who need longer telephoto reach beyond 40mm or those requiring a faster maximum aperture than f/2.8 for specialised low-light work.

Constant f/2.8 aperture from 12mm to 40mm

The constant f/2.8 maximum aperture across the entire 12-40mm zoom range is the specification that determines suitability. It provides consistent exposure and depth-of-field control whether shooting at the wide or telephoto end, which is essential for run-and-gun video and variable lighting conditions.

Highlights

  • Close focus at 20cm captures fine detail across the frame
  • Constant f/2.8 aperture maintains brightness throughout the zoom range
  • Weather-sealed construction protects the lens in challenging conditions
  • Compact and lightweight design fits easily in any gear bag
  • Versatile 12-40mm range covers wide-angle to mid-telephoto needs

Specifications

TypeAccessory

Questions about this item

How do I confirm the lens focuses correctly at the 20cm minimum distance?

Mount the lens, set focus to 20cm, photograph a flat high-contrast target, then check the image for edge-to-edge sharpness at f/2.8.

What comes in the box with the M.Zuiko Digital ED 12-40mm f/2.8 PRO II and what must I buy separately?

The box contains the lens, front and rear caps, a lens hood and a pouch; filters, a tripod collar and a camera body are sold separately.

Which focal-length version of the M.Zuiko PRO II zoom should I choose for wide-angle to mid-range telephoto coverage?

The 12-40mm f/2.8 PRO II covers 12mm wide-angle through 40mm mid-range telephoto in a single constant-aperture lens.

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