The Olympus M.Zuiko Digital ED 12-40mm f/2.8 PRO II is an OM System 12–40mm zoom for Micro Four Thirds, released in 2022. It covers 24–80mm in full-frame terms at a maximum aperture of f/2.8. It offers weather sealing and a 382g build.
Best for: Everyday zoom covering wide to short telephoto
Pros
- Constant f/2.8 aperture throughout the zoom range
- Weather sealed for outdoor and adverse conditions
- Wide starting focal length at 24mm equivalent
Cons
- Higher price than entry-level alternatives
What this lens is good for
Everyday and walkaround
The 24-80mm full-frame equivalent at constant f/2.8 is the default professional standard zoom, covering most everyday shooting from wide scenes to short portraits. It is sharp corner to corner, weather sealed, and compact, the first PRO zoom most M43 shooters buy and rarely need to replace.
Close-up and detail
With a 0.2m minimum focus and 0.3x magnification it focuses unusually close for a standard zoom, enough for casual close-ups of flowers, food, and product detail without a macro lens. That near-macro ability adds to its all-round usefulness.
Events and travel
The constant f/2.8 aperture, fast autofocus, and weather sealing make it a dependable event and travel lens, holding exposure as you zoom and working in poor light and weather. It is the safe single-lens choice when you cannot swap optics. Full guide →
Specifications
| Lens | |
| Brand | M.Zuiko |
| Type | zoom |
| Status | current |
| Released | 2022-11 |
| Mount | mft |
| Optics | |
| Focal length | 12-40mm |
| FF equivalent | 24-80mm |
| Max aperture | f/2.8 |
| Min aperture | f/22 |
| Aperture blades | 9 |
| Elements / Groups | 14 / 9 |
| Focus | |
| Autofocus | MSC |
| MF override | Yes |
| Min focus distance | 0.2m |
| Max magnification | 0.3x |
| Stabilisation | |
| OIS | No |
| Dual IS compatible | No |
| Physical | |
| Weather sealed | Yes |
| Filter size | 62mm |
| Weight | 382g |
| Dimensions | 84.3mm length x 70mm diameter |
| Pricing | |
| Price (approx.) | $899 USD |