Quick answer
The Vivitar 50mm f/1.7 Auto is a standard prime lens covering 50mm at f/1.7 for the Canon FD mount. Its fast maximum aperture helps in dim light and gives good subject separation.
About this lens
A 50mm f/1.7 fast manual-focus standard prime lens, the Vivitar 50mm f/1.7 Auto is designed for Canon FD mount bodies. The natural field of view suits street, documentary and everyday photography.
Vivitar 50mm f/1.7 Auto specifications
What can you shoot with the Vivitar 50mm f/1.7 Auto?
At 50mm this is a standard prime, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
Its fast maximum aperture helps in dim light and gives good subject separation.
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 | 50mm | 39.6° | 46.8° |
| APS-C | 1.6x | 80mm | 25.4° | 30.3° |
| Micro Four Thirds | 2.0x | 100mm | 20.4° | 24.4° |
Frequently asked questions
What mount does the Vivitar 50mm f/1.7 Auto use?
It uses the Canon FD mount, so it fits Canon FD cameras directly and can be used on other systems through a mount adapter.
What is the focal length of the Vivitar 50mm f/1.7 Auto?
It is a fixed 50mm lens with a maximum aperture of f/1.7. That makes it a standard lens.
Is the Vivitar 50mm f/1.7 Auto 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/1.7.
What is the Vivitar 50mm f/1.7 Auto equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 80mm on full frame, with a 25.4° horizontal and 30.3° diagonal field of view. 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.
Alternatives for Canon FD from other brands
All Canon FD lensesSame mount, overlapping focal range, closest maximum aperture first.
