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Olympus 45mm f/1.2 M.Zuiko Digital Pro Autofocus Lens for MFT (Micro Four Thirds) Black {62}

Model #375884
  • $606.00

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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, Case, Hood
$606.00
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Olympus 45mm f/1.2 PRO: the portrait prime MFT shooters reach for first.

At 90mm full-frame equivalent with a f/1.2 maximum aperture, this lens does exactly what portrait photographers need: separates subject from background with authority and holds its own in low light without flash. The PRO series build includes IPX1 weather sealing, so shooting through a light drizzle at an outdoor wedding or event isn't a reason to pack up. ED glass elements and nano coating keep chromatic aberration controlled and flare minimal, even wide open.

The manual focus clutch mechanism is a practical feature that gets overlooked in spec sheets. Pull the focus ring back and you're in manual mode with a physical distance scale, no menu diving, no mode switching. For photographers who zone-focus during street shooting or want tactile control during studio work, that matters. The 62mm filter thread fits a standard range of NDs and polarizers without a step-up ring on most kits.

For a Micro Four Thirds prime at f/1.2 with full weather sealing and optical coatings at this level, the value proposition has been proven over eight years of real-world use. This is a lens that MFT system shooters tend to keep.

Who It's For

Portrait photographers working in variable light will put the f/1.2 aperture to work immediately, pulling subjects off backgrounds and maintaining exposure without bumping ISO. Event and wedding photographers benefit from the IPX1 weather sealing during outdoor shoots where conditions shift. Street photographers who prefer a longer working distance will appreciate the 90mm equivalent focal length and the tactile manual focus clutch for quick control changes. Studio shooters looking for a native MFT prime with consistent rendering and minimal aberration thanks to the ED glass construction have an option here.

Key Features

  • 45mm focal length with f/1.2 maximum aperture
  • 90mm full-frame equivalent for portrait compression
  • Micro Four Thirds mount
  • IPX1 weather sealing for light rain and splashing
  • ED glass and nano coating for contrast and flare control
  • Manual focus clutch mechanism with distance scale
  • 62mm filter thread

FAQ

What's the full-frame equivalent focal length?
90mm equivalent. MFT sensor is crop 2x, so the 45mm native focal length sits squarely in portrait territory without the bulk of a full-frame tele prime.
Does it autofocus, or is it manual only?
It autofocuses. The manual focus clutch is a secondary feature - pull the ring back for manual control with a distance scale, push it forward for autofocus.
How does weather sealing actually work on this lens?
IPX1 rating means it handles light splashing and drizzle, not heavy rain or submersion. It's enough for outdoor events in typical weather, not enough for dunking or sustained downpour.
What's the minimum focus distance?
Olympus didn't publish this in the basic specs, so check the full optical bench data or contact a retailer with the MPN for exact macro capability.
Can I use standard 62mm filters without adapters?
Yes. The 62mm thread is common enough that you can source ND, polarizer, and UV filters without step-up rings.
Is this lens still competitive for MFT portrait work?
Eight years of field use by MFT shooters proves it holds up optically and mechanically. The f/1.2 aperture and weather sealing remain the baseline for serious MFT portrait primes.
SpecificationValue
Focal Length45mm
Max Aperturef/1.2
MountMicro Four Thirds (MFT)
Filter Thread62 mm

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 Olympus
Filter Size 62mm
Focus Type Autofocus (lens motor)
Lens Mount Micro Four Thirds
Lens Type Short Tele / Portrait
Max Focal Length 45mm
Min Focal Length 45mm