Quick answer
The Minolta MD Rokkor-X 20mm f/2.8 is a ultra-wide prime lens covering 20mm at f/2.8 for the Minolta MD mount. Its bright maximum aperture handles indoor and evening light reasonably well.
About this lens
Minolta MD Rokkor-X 20mm f/2.8: a manual-focus wide-angle prime lens with a 20mm focal length and a maximum aperture of f/2.8, made for Minolta MD mount cameras. A classic Rokkor lens from the manual-focus Minolta SR/MD system.
Minolta MD Rokkor-X 20mm f/2.8 specifications
- Brand
- Minolta
- Mount
- Minolta MD
- Focal length
- 20mm
- Maximum aperture
- f/2.8
- Lens type
- Prime
- Format coverage
- full-frame
- Optical construction
- 10 elements in 9 groups
- Autofocus motor
- none
- Minimum focus distance
- 0.25 m
- Filter thread
- 55 mm
- Weight
- 235 g
- Length
- 43.5 mm
- Diameter
- 64.5 mm
Specification source: en.wikipedia.org
What can you shoot with the Minolta MD Rokkor-X 20mm f/2.8?
At 20mm this is a ultra-wide prime, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its bright maximum aperture handles indoor and evening light reasonably well.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor (adapted mount, so sensor size depends on your camera). Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 20mm | 84° | 94.5° |
| APS-C | 1.5x | 30mm | 61.9° | 71.6° |
| Micro Four Thirds | 2.0x | 40mm | 48.5° | 56.8° |
Frequently asked questions
What mount does the Minolta MD Rokkor-X 20mm f/2.8 use?
It uses the Minolta MD mount, so it fits Minolta MD cameras directly and can be used on other systems through a mount adapter.
What is the focal length of the Minolta MD Rokkor-X 20mm f/2.8?
It is a fixed 20mm lens with a maximum aperture of f/2.8. That makes it a ultra-wide lens.
Is the Minolta MD Rokkor-X 20mm f/2.8 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/2.8.
What is the Minolta MD Rokkor-X 20mm f/2.8 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 30mm on full frame, with a 61.9° horizontal and 71.6° diagonal field of view. 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.
Alternatives for Minolta MD from other brands
All Minolta MD lensesSame mount, overlapping focal range, closest maximum aperture first.
