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OM SYSTEM 12-40mm f/2.8 M.Zuiko Digital II ED PRO Lens for MFT (Micro Four Thirds) Black {62}

Model #389156
  • $759.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
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With Caps, Hood
$759.00
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EX Excellent
With Caps, Hood
$718.00
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EX Excellent
With Caps
$694.00
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OM System 12-40mm f/2.8 PRO II: the definitive MFT standard zoom.

The 12-40mm f/2.8 PRO II covers a 24-80mm equivalent range at a constant f/2.8, making it the lens most Micro Four Thirds shooters build their kit around. Fourteen elements in nine groups include ED, DSA, HD, HR, and aspherical glass, all working to hold chromatic and spherical aberrations in check across the full zoom range. ZERO coating suppresses ghosting and flare, while a fluorine coating on the front element makes field cleaning fast and clean. The manual focus clutch pulls toward you to engage manual focus and pushes forward to return to AF, no menu diving, no fumbling.

At 382g and 84mm long, this lens disappears in a bag and balances well on any MFT body. IP53 weather and dust resistance means it operates down to 14°F (-10°C), matching the sealing found on OM System's PRO-grade camera bodies. Minimum focus distance of 20cm delivers up to 0.6x magnification (35mm equivalent), so macro work is on the table without swapping glass. MSC autofocus keeps drive noise low enough for video, and the lens supports Focus Stacking on compatible bodies, useful for macro and landscape work where depth of field needs to extend beyond what f/2.8 provides.

For MFT shooters who want one lens that handles most assignments without size or weight penalties, the 12-40mm f/2.8 PRO II is the answer the system was built around.

Who It's For

Travel photographers get a 24-80mm equivalent range in a package light enough to carry all day without fatigue, with IP53 protection for unpredictable weather. Documentary and street shooters benefit from the constant f/2.8 aperture in mixed or low light situations, plus the silent MSC autofocus that won't disrupt a scene. Macro photographers can work at 20cm minimum focus distance without carrying a dedicated macro lens. Wedding photographers shooting on MFT bodies will find the focal range covers ceremony wide shots through tighter portrait framing on a single zoom.

Key Features

  • Constant f/2.8 aperture across 24-80mm equivalent zoom range
  • 14 elements in 9 groups with ED, DSA, HD, and aspherical glass
  • ZERO coating suppresses ghosting and flare throughout zoom range
  • Fluorine front element coating for fast field cleaning
  • IP53 weather sealing rated to 14°F (-10°C)
  • Manual focus clutch with no-menu AF/MF switching
  • MSC autofocus with silent video operation
  • Minimum focus distance of 20cm with 0.6x macro magnification

FAQ

What's the actual field of view compared to full-frame lenses?
The 12-40mm is a 24-80mm equivalent on MFT, so it covers the same range as a standard zoom on full-frame-wide enough for landscapes, long enough for portraits without cropping.
Can you shoot video with this lens without hearing focus motor noise?
Yes. The MSC autofocus mechanism is designed specifically for silent, smooth focusing during video recording.
How close can you focus, and is macro photography really viable?
Minimum focus is 20cm (7.9 inches) with up to 0.6x magnification equivalent. That's close enough for insects and small subjects, though not true 1:1 macro-you'll need a dedicated macro lens for smaller work.
Is this lens sealed well enough for rain or snow?
IP53 sealing handles dust and splashes, and it operates down to 14°F (-10°C), so light rain and snow are fine. It's not waterproof for dunking or heavy downpours.
How does the manual focus clutch work?
Pull the focus ring toward you to engage manual focus, push it away to return to autofocus. No menu diving or button holding required.
What makes this lens so much lighter than similar full-frame zooms?
MFT's smaller sensor format means smaller optics overall-the lens weighs 382g versus 600g+ for equivalent full-frame zooms. You get the same field of view in a more packable size.
Does this lens support focus stacking?
On compatible OM System cameras, yes. It works with the camera's built-in focus stacking feature for macro and landscape shots where you need depth of field beyond f/2.8.
SpecificationValue
Focal Length12-40mm
Max Aperturef/2.8
Min Aperturef/22
MountMicro Four Thirds
Min Focus Distance7.9" / 20 cm
Equivalent Focal Length24-80mm
Lens FormatMicro Four Thirds
Angle Of View84° 30'
Optical Elements14
Optical Groups9
Filter Thread62mm
Length3.3" / 84mm
Maximum Diameter2.8" / 70mm
Weather SealingIP53
Package Weight1.42 lb
Box Dimensions8.5 x 4.6 x 4.6"
Weight13.5 oz / 382g

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name OM Digital Solutions Corp.
Filter Size 62mm
Focus Type Autofocus (lens motor)
Lens Mount Micro Four Thirds
Lens Type Standard / Normal
Max Focal Length 40mm
Min Focal Length 12mm