Olympus M.Zuiko Digital ED 12-45mm f/4 PRO Lens
The Olympus 12-45mm f/4 PRO is a 12–45mm f/4 lens designed for Micro Four Thirds mount cameras. Used copies start from $414.8 on GearFocus, with buyer protection on every purchase.

Olympus M.Zuiko Digital ED 12-45mm f/4 PRO Lens
Used Olympus 12-45mm f/4 PRO Listings on GearFocus
Lens Overview — Olympus 12-45mm f/4 PRO
Key Features — Olympus 12-45mm f/4 PRO
12-45mm f/4 PRO Zoom: Covers a versatile standard zoom range equivalent to 24-90mm full-frame, suitable for everyday, travel, and documentary shooting.
Constant f/4 Aperture: Maximum aperture stays fixed at f/4 throughout the entire zoom range, keeping exposure settings consistent without adjustment as you zoom.
Micro Four Thirds Mount: Designed natively for the MFT system, ensuring full electronic compatibility with Olympus OM-D and Panasonic Lumix mirrorless bodies.
Compact 254g Build: Weighs just 254 grams, making it one of the lightest constant-aperture standard zooms available for any mirrorless system.
PRO-Series Construction: Part of Olympus's PRO lens line, featuring dust, splash, and freeze-proof sealing for reliable use in harsh outdoor conditions.
Auto and Manual Focus: Supports both AF and MF operation, allowing shooters to switch seamlessly depending on subject or shooting style.
Lens Specifications — Olympus 12-45mm f/4 PRO
| Spec | Detail |
|---|---|
| Use Cases | Travel, Landscape, Street, Architecture, Product |
| Lens Type | Zoom |
| Format | Micro Four Thirds (MFT) |
| Zoom/Prime | Zoom |
| Focal Length | 12–45mm |
| Maximum Aperture | f/4 |
| Camera System | Mirrorless |
| Lens Mount | Micro Four Thirds |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 58mm |
Description — Olympus 12-45mm f/4 PRO
The Olympus M.Zuiko Digital ED 12-45mm f/4 PRO is a Micro Four Thirds mount zoom lens covering a focal length range of 12mm to 45mm. It maintains a constant f/4 maximum aperture throughout the entire zoom range, providing predictable and consistent exposure whether shooting at the wide end or zoomed in. Weighing just 254g, this lens is impressively compact for an autofocus standard zoom with a constant aperture, making it well-suited for travel, street, and everyday photography where pack weight matters.
The 58mm filter thread accepts a wide variety of readily available filter accessories. The lens supports both autofocus and manual focus, giving photographers full control over their focusing method. It is designed exclusively for the Micro Four Thirds mirrorless camera system.
One important consideration: the specifications confirm no optical image stabilization is built into this lens, so users should factor in whether their camera body provides in-body stabilization if that feature is a priority.
Pros — Olympus 12-45mm f/4 PRO
- ✓Constant f/4 maximum aperture across the full 12–45mm zoom range ensures consistent exposure throughout
- ✓Lightweight at just 254g, making it highly portable for an autofocus standard zoom
- ✓58mm filter thread is a common size, simplifying accessory compatibility
Cons — Olympus 12-45mm f/4 PRO
- ✗No optical image stabilization built into the lens, as confirmed by specifications
- ✗Maximum aperture of f/4 is relatively modest compared to faster standard zoom alternatives
- ✗Focal length range of 12–45mm stops short of a longer telephoto reach, limiting versatility at distance
Reviews — Olympus 12-45mm f/4 PRO
Videos — Olympus 12-45mm f/4 PRO
Olympus 12-45mm F4 PRO Review - Smallest Olympus PRO Lens — Robin Wong
Frequently Asked Questions — Olympus 12-45mm f/4 PRO
What camera mount does this lens use?+
This lens uses the Micro Four Thirds mount, making it compatible with Micro Four Thirds mirrorless camera bodies from brands such as Olympus and Panasonic. It is designed specifically for the MFT mirrorless system.
Does this lens have image stabilization?+
No. The specifications confirm that image stabilization is listed as 'None' on this lens. If stabilization is important to your workflow, you would need to rely on in-body image stabilization from your camera body.
What filter size does this lens accept?+
The lens has a 58mm filter thread, which is a widely available size. This makes it easy to find compatible filters such as polarizers or neutral density filters.
How much does this lens weigh?+
The lens weighs 254 grams, which is quite compact for a constant-aperture standard zoom. This makes it a practical choice for photographers who want to keep their kit light.
Does this lens support autofocus?+
Yes. The lens supports both autofocus and manual focus operation, giving photographers the flexibility to switch between focus modes depending on their shooting needs.
What is the maximum aperture, and does it change throughout the zoom range?+
The maximum aperture is f/4, and it remains constant across the entire 12–45mm focal length range. This means your exposure settings won't need adjustment as you zoom in or out.






