Olympus M.Zuiko Digital 45mm f/1.8 MSC Lens
The Olympus 45mm f/1.8 MSC is a 45mm f/1.8 lens designed for Micro Four Thirds mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Olympus M.Zuiko Digital 45mm f/1.8 MSC Lens
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Lens Overview — Olympus 45mm f/1.8 MSC
Key Features — Olympus 45mm f/1.8 MSC
45mm f/1.8 Prime: Equivalent to a 90mm portrait-length focal length on full-frame, making it well-suited for portraiture, detail shots, and everyday photography.
Bright f/1.8 Aperture: Wide maximum aperture enables strong background separation and confident shooting in low-light environments.
MSC Autofocus System: Movie & Still Compatible designation means the autofocus is designed to operate quietly and smoothly for both stills and video recording.
116g Compact Build: One of the lightest lenses in its class, making it easy to carry all day without adding meaningful bulk to your kit.
Micro Four Thirds Mount: Natively compatible with the full range of MFT mirrorless cameras from Olympus, OM System, and Panasonic.
37mm Filter Thread: Small filter diameter keeps the cost of compatible ND, polarizer, and UV filters low.
Lens Specifications — Olympus 45mm f/1.8 MSC
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Street, Travel |
| Lens Type | Prime |
| Format | Micro Four Thirds (MFT) |
| Zoom/Prime | Prime |
| Focal Length | 45mm |
| Maximum Aperture | f/1.8 |
| Camera System | Mirrorless |
| Lens Mount | Micro Four Thirds |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 37mm |
Description — Olympus 45mm f/1.8 MSC
The Olympus M.Zuiko Digital 45mm f/1.8 MSC is a prime lens designed for the Micro Four Thirds mirrorless system. With a maximum aperture of f/1.8, it delivers solid performance in lower light and allows for meaningful background separation at wider apertures. Tipping the scales at just 116g, it is one of the more portable prime options available for MFT shooters, and its 37mm filter thread keeps the overall footprint compact.
The lens supports both autofocus and manual focus, and its MSC (Movie & Still Compatible) autofocus system is engineered to perform reliably whether you are shooting stills or recording video. The native Micro Four Thirds mount ensures seamless integration with compatible mirrorless bodies. Note that this lens does not include built-in image stabilization, so in-body stabilization from your camera body would need to be utilized if desired.
At 45mm, it covers the standard focal length range, making it a practical everyday prime for MFT users.
Pros — Olympus 45mm f/1.8 MSC
- ✓Bright f/1.8 maximum aperture enables strong subject separation and low-light capability
- ✓Extremely lightweight at just 116g, ideal for travel and everyday carry
- ✓Compact 37mm filter thread size keeps filter costs low
Cons — Olympus 45mm f/1.8 MSC
- ✗No built-in image stabilization — must rely on camera body IBIS if available
- ✗Fixed 45mm focal length offers no zoom flexibility
- ✗Small 37mm filter thread may limit filter options compared to larger lenses
Reviews — Olympus 45mm f/1.8 MSC
- Olympus 45mm f/1.8 Zuiko Digital Micro Four Thirds Lens Review
ePHOTOzine · unknown - Olympus 45mm f/1.8 ED M.Zuiko Digital Review
Imaging Resource · unknown - Olympus M.Zuiko 45mm f/1.8 review
Digital Camera World · unknown - Olympus 45mm F1.8 first impressions
DPReview · unknown - This Tiny Micro Four Thirds Lens Is Incredible - Olympus 45mm F1.8
Robin Wong - Olympus 45mm f/1.8 - Worth the Money in 2026?
My Photo Journey
Videos — Olympus 45mm f/1.8 MSC
Olympus M.Zuiko 45mm 1.8 still the King? - RED35 Review — Jimmy Cheng (RED35)