* Item pictured for illustrative purposes only, actual item not pictured. See ‘Notes’ next to grade for included items.
Olympus Zuiko 21mm f/3.5 MC Manual Focus Lens for OM-Mount {49}
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Standard accessories included
Olympus Zuiko 21mm f/3.5 MC: a classic OM wide-angle prime.
The Zuiko 21mm f/3.5 MC is a fixed focal length wide-angle lens built for the Olympus OM mount, with multi-coating that reduces flare and keeps contrast clean across the frame. The 49mm filter thread keeps your kit compact, and the fully manual focus operation puts precise control in your hands than delegating it to a motor.
OM-mount lenses have found a second life on mirrorless bodies via adapters, and a 21mm prime is a natural fit for that workflow. Manual focus at this focal length is forgiving enough to shoot quickly, and the f/3.5 maximum aperture keeps the optical formula compact without sacrificing field coverage. For photographers who already shoot OM glass, this lens slots into an existing kit without any compromise on build or optical consistency.
Who It's For
Street photographers working in tight spaces will appreciate the 21mm perspective for environmental context without distortion becoming a problem. Documentary and travel shooters who prefer a single wide prime over a zoom will find the fixed focal length encourages deliberate framing. Film photographers running an OM-system body get a native, fully mechanical lens with no reliance on electronic communication. Mirrorless adapters shooting legacy glass can add this to an OM collection and use focus magnification to get the most out of the multi-coated optics.
Key Features
- 21mm fixed focal length wide-angle prime
- f/3.5 maximum aperture keeps optical formula compact
- Olympus OM mount for classic SLR bodies or mirrorless via adapter
- Multi-coated optics reduce flare and maintain contrast
- 49mm filter thread
- Manual focus operation for direct control
FAQ
- What mount is this lens, and can I use it on modern cameras?
- It's Olympus OM mount, designed for classic OM-mount SLR bodies. OM glass works on mirrorless cameras via passive adapters, which is why these lenses have become popular again with that crowd.
- Does this lens have autofocus?
- No, it's fully manual focus. At 21mm, manual focus is forgiving enough for quick shooting, and you keep direct control over focus rather than relying on a motor.
- What's the maximum aperture, and is it wide enough for low light?
- f/3.5. At a wide focal length, this aperture is typical for a compact optical formula. It's not a fast aperture, but 21mm lenses don't require as much light as longer primes to gather detail.
- What filter size does this lens use?
- 49mm. That's a common thread size, so filters are affordable and easy to find.
- What does MC stand for?
- Multi-Coated. The multi-coating reduces flare and reflections, keeping contrast clean across the frame.
- Is this lens compact?
- Yes. The f/3.5 aperture and fixed focal length keep the optical formula simple and the lens physically small, which makes it practical for travel or run-and-gun shooting.
- What field of view does a 21mm lens give on different camera sensors?
- That depends on the sensor size of the camera you adapt it to. On a full-frame mirrorless body via adapter, you get a true 21mm wide field of view. On crop-sensor bodies, the effective field narrows slightly.
| Specification | Value |
|---|---|
| Focal Length | 21mm |
| Max Aperture | f/3.5 |
| Mount | Olympus OM |
| AF System | No |
| Filter Thread | 49mm |
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 | 49mm |
| Focus Type | Manual focus (only) |
| Lens Mount | Olympus OM |
| Lens Type | Wide-Angle |
| Max Focal Length | 21mm |
| Min Focal Length | 21mm |
Learn what to expect cosmetically from each grade. Images are representative and may not reflect the exact item. All gear is guaranteed functional unless noted. Accessories are typically not included unless listed. Like New through Bargain grades include a 180-day warranty. Items may also be available.
Exceptions
- New
- New in box complete with manufacturer's USA warranty. Not previously owned or used.
- Like New
- Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
- As Is
- Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
Like New Minus
Like New Minus
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.
Excellent Plus
Excellent Plus
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.
Excellent
Excellent
Noticeably used with average signs of wear 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.
Bargain
Bargain
Heavily used with noticeable cosmetic and optical wear, but performance is mostly unaffected. 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. Accessories usually not included, unless noted in listing. 180-day warranty.
Ugly
Ugly
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.
