Samyang Micro Four Thirds mount Ultra-wide prime
Samyang 20mm T1.9 ED AS UMC
Quick answer
The Samyang 20mm T1.9 ED AS UMC is a ultra-wide prime lens covering 20mm at f/1.9 for the Micro Four Thirds mount. Its fast maximum aperture helps in dim light and gives good subject separation.
- Micro Four Thirds (40mm equiv.)
- 68 Micro Four Thirds cameras
- Focal
- 20mm
- Aperture
- f/1.9
- Filter
- 77mm
- Min focus
- 0.2m
- AF motor
- None
What 20mm sees
- Micro Four Thirds crop 2.0× → 40mm
- 56.8° 48.5° horizontal
Diagonal angle of view. Frames drawn to scale at 20mm. Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculatorSamyang 20mm T1.9 ED AS UMC specifications
Optics
- Focal length
- 20mm
- Maximum aperture
- f/1.9
- Format coverage
- Full frame
- Optical construction
- 13 elements in 12 groups
Focus
- Autofocus motor
- None
- Minimum focus distance
- 0.2 m
Physical
- Filter thread
- 77 mm
- Length
- 113.2 mm
- Diameter
- 83 mm
General
- Brand
- Samyang
- Mount
- Micro Four Thirds
- Lens type
- Prime
Specification source: lksamyang.com
What can you shoot with the Samyang 20mm T1.9 ED AS UMC?
At 20mm this is a ultra-wide prime, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its fast maximum aperture helps in dim light and gives good subject separation.
Frequently asked questions
What mount does the Samyang 20mm T1.9 ED AS UMC use?
It uses the Micro Four Thirds mount, so it fits Micro Four Thirds cameras directly.
What is the focal length of the Samyang 20mm T1.9 ED AS UMC?
It is a fixed 20mm lens with a maximum aperture of f/1.9. That makes it a ultra-wide lens.
Is the Samyang 20mm T1.9 ED AS UMC a prime or a zoom lens?
It is a prime lens with a fixed 20mm focal length. Primes usually open wider than zooms; this one opens to f/1.9.
What is the Samyang 20mm T1.9 ED AS UMC equivalent on a crop sensor?
On Micro Four Thirds (2x crop) it frames like 40mm on full frame, with a 48.5° horizontal and 56.8° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Samyang 20mm T1.9 ED AS UMC 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 63 more.
Alternatives for Micro Four Thirds from other brands
All Micro Four Thirds lensesSame mount, overlapping focal range, closest maximum aperture first.
