The Olympus M.Zuiko ED 25mm f/1.2 PRO is an Olympus 25mm prime for Micro Four Thirds, released in 2016. It covers 50mm in full-frame terms at a maximum aperture of f/1.2. It offers weather sealing and a 410g build.
Best for: Portraits, events, and low-light shooting
Pros
- Very wide f/1.2 aperture for low-light and subject separation
- Weather sealed for outdoor and adverse conditions
Cons
- Bulkier than compact alternatives
- Higher price than entry-level alternatives
What this lens is good for
Everyday and low light
The 50mm full-frame equivalent is the most natural, versatile focal length there is, close to how the eye sees, and the f/1.2 aperture gathers enough light for dim interiors and night streets without raising ISO. Weather sealing makes it a dependable walkaround prime in any conditions.
Portraits
At f/1.2 this lens produces strong subject separation and the smooth, gradual out-of-focus rendering Olympus tuned into its PRO primes. The 50mm equivalent is a relaxed portrait length that works for half-body and environmental portraits where you want some context around the subject.
Available-light events
The fast aperture and reliable autofocus make it a strong choice for weddings, gigs, and indoor events where the light is poor and you cannot use flash. It is larger and heavier than the budget 25mm primes, but the image quality and sealing justify it for serious use.
Specifications
| Lens | |
| Brand | M.Zuiko |
| Type | prime |
| Status | current |
| Released | 2016-11 |
| Mount | mft |
| Optics | |
| Focal length | 25mm |
| FF equivalent | 50mm |
| Max aperture | f/1.2 |
| Min aperture | f/16 |
| Aperture blades | 9 |
| Elements / Groups | 19 / 14 |
| Focus | |
| Autofocus | MSC |
| MF override | Yes |
| Min focus distance | 0.3m |
| Max magnification | 0.11x |
| Stabilisation | |
| OIS | No |
| Dual IS compatible | No |
| Physical | |
| Weather sealed | Yes |
| Filter size | 62mm |
| Weight | 410g |
| Dimensions | 87mm length x 64mm diameter |
| Pricing | |
| Price (approx.) | $899 USD |