Quick answer
The Vivitar 100mm f/3.5 Auto Telephoto is a short telephoto prime lens covering 100mm at f/3.5 for the Canon FD mount. Its moderate maximum aperture works best in good light or with a higher ISO.
About this lens
A 100mm f/3.5 manual-focus short-telephoto prime lens, the Vivitar 100mm f/3.5 Auto Telephoto is designed for Canon FD mount bodies. The focal length is a classic choice for portraits and details.
Vivitar 100mm f/3.5 Auto Telephoto specifications
What can you shoot with the Vivitar 100mm f/3.5 Auto Telephoto?
At 100mm this is a short telephoto prime, which typically suits:
- Portraits with a flattering perspective
- Events and weddings
- Isolating subjects from the background
Its moderate maximum aperture works best in good light or with a higher ISO.
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 | 100mm | 20.4° | 24.4° |
| APS-C | 1.6x | 160mm | 12.8° | 15.4° |
| Micro Four Thirds | 2.0x | 200mm | 10.3° | 12.3° |
Frequently asked questions
What mount does the Vivitar 100mm f/3.5 Auto Telephoto 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 100mm f/3.5 Auto Telephoto?
It is a fixed 100mm lens with a maximum aperture of f/3.5. That makes it a short telephoto lens.
Is the Vivitar 100mm f/3.5 Auto Telephoto a prime or a zoom lens?
It is a prime lens with a fixed 100mm focal length. Primes usually open wider than zooms; this one opens to f/3.5.
What is the Vivitar 100mm f/3.5 Auto Telephoto equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 160mm on full frame, with a 12.8° horizontal and 15.4° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 200mm on full frame, with a 10.3° horizontal and 12.3° 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.
