Olympus 25mm f/1.8 M.Zuiko Digital MSC Autofocus Lens for MFT (Micro Four Thirds) Black {46} with Decoration Ring

Model #364309
  • $286.00

Select Gear Grade
Our Grading System
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.
EX+ Excellent Plus
With Caps and Hood
$305.00
Only 2 left!
EX Excellent
With Caps and Hood
$294.00
Only 1 left!
EX+ Excellent Plus
With Caps
$286.00
Only 2 left!
EX Excellent
With Caps
$268.00
Only 1 left!
Free 180 Day warranty on all purchases
FREE SHIPPING OVER $75 + FREE 21-DAY RETURNS

25mm f/1.8 prime built for Micro Four Thirds shooters

On a Micro Four Thirds body, the 25mm focal length lands at a 50mm full-frame equivalent, making this lens the natural choice when you want a standard field of view with no cropping math required. The f/1.8 maximum aperture gives you real low-light capability and enough subject separation to keep backgrounds from competing with your subject. The 46mm filter thread keeps the whole package compact, which is the point of building for MFT in the first place.

MSC (Movie and Still Compatible) autofocus is designed for quiet, fast focus transitions that don't intrude on video audio tracks. That matters whether you're pulling focus mid-scene or shooting in a space where lens noise would be a problem. The fixed focal length keeps optical complexity low and image quality consistent across the frame. For photographers who want a single walkaround prime that covers most situations without adding weight to a bag, this lens makes a straightforward case for itself.

Who It's For

Street photographers shooting on MFT bodies get the classic 50mm-equivalent angle of view in a package small enough to stay unobtrusive. Documentary and travel shooters benefit from the f/1.8 aperture when working in dim interiors or at dusk without a flash. Video creators using Olympus or Panasonic MFT systems will find the MSC autofocus quiet enough to avoid contaminating on-camera audio. Portrait photographers working at moderate distances can use the f/1.8 to draw separation between a subject and a cluttered background without moving to a longer focal length.

Key Features

  • 25mm focal length, 50mm full-frame equivalent on MFT
  • f/1.8 maximum aperture for subject separation and low-light work
  • MSC autofocus designed for silent, smooth video focus pulls
  • Micro Four Thirds mount for compact system building
  • 46mm filter thread matches standard accessories
  • Fixed prime design minimizes optical complexity

FAQ

What's the 50mm equivalent focal length on MFT?
The 25mm is a true 50mm full-frame equivalent on any Micro Four Thirds body, giving you a standard field of view without any additional crop factor math.
How does MSC autofocus affect video shooting?
MSC (Movie and Still Compatible) autofocus operates quietly and smoothly, so focus transitions won't bleed into your audio track and pulling focus mid-scene stays unobtrusive.
Is this lens weather-sealed?
The specifications don't list weather sealing for this lens, so treat it as you would any standard optic in wet conditions.
What's the minimum focus distance?
Specifications don't include minimum focus distance, so contact KEH directly for that detail.
Does the 46mm filter thread work with standard accessories?
Yes, 46mm is a common filter size, so you can use standard circular polarizers, ND filters, and protective filters without hunting for proprietary solutions.
How compact is this lens compared to zooms?
Fixed focal lengths cut optical complexity, which keeps the lens small and light-exactly what makes Micro Four Thirds appealing in the first place.
SpecificationValue
Focal Length25mm
Max Aperturef/1.8
MountMicro Four Thirds (MFT)
Filter Thread46 mm
ColorBlack

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 46mm
Focus Type Autofocus (lens motor)
Lens Mount Micro Four Thirds
Lens Type Standard / Normal
Max Focal Length 25mm
Min Focal Length 25mm