Quick answer
The Rokinon 50mm f/1.2 AS UMC CS is a standard prime lens covering 50mm at f/1.2 for the Micro Four Thirds mount. Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.
About this lens
Rokinon 50mm f/1.2 AS UMC CS: a fast standard prime lens with a 50mm focal length and a maximum aperture of f/1.2, made for Micro Four Thirds mount cameras, with aspherical elements. The natural field of view suits street, documentary and everyday photography.
Rokinon 50mm f/1.2 AS UMC CS specifications
- Brand
- Rokinon
- Mount
- Micro Four Thirds
- Focal length
- 50mm
- Maximum aperture
- f/1.2
- Lens type
- Prime
- Optical construction
- 9 elements in 7 groups
- Minimum focus distance
- 0.5 m
- Filter thread
- 62 mm
Specification source: lksamyang.com
What can you shoot with the Rokinon 50mm f/1.2 AS UMC CS?
At 50mm this is a standard prime, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Micro Four Thirds | 2.0x | 100mm | 20.4° | 24.4° |
Frequently asked questions
What mount does the Rokinon 50mm f/1.2 AS UMC CS use?
It uses the Micro Four Thirds mount, so it fits Micro Four Thirds cameras directly.
What is the focal length of the Rokinon 50mm f/1.2 AS UMC CS?
It is a fixed 50mm lens with a maximum aperture of f/1.2. That makes it a standard lens.
Is the Rokinon 50mm f/1.2 AS UMC CS a prime or a zoom lens?
It is a prime lens with a fixed 50mm focal length. Primes usually open wider than zooms; this one opens to f/1.2.
What is the Rokinon 50mm f/1.2 AS UMC CS equivalent on a crop sensor?
On Micro Four Thirds (2x crop) it frames like 100mm on full frame, with a 20.4° horizontal and 24.4° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Rokinon 50mm f/1.2 AS UMC CS fit?
Any Micro Four Thirds-mount camera, including OM System OM-1, OM System OM-1 Mark II, OM System OM-5, Olympus OM-D E-M1, and Olympus OM-D E-M1 Mark II and 24 more.
Alternatives for Micro Four Thirds from other brands
All Micro Four Thirds lensesSame mount, overlapping focal range, closest maximum aperture first.
