Tamron 28mm f/2.5 Adaptall-2 vs Vivitar 28mm f/2.8 Wide Angle
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Tamron 28mm f/2.5 Adaptall-2 is faster by 0.3 stops (f/2.5 vs f/2.8), letting in more light.
| Spec | 28mm f/2.5 Adaptall-2 | 28mm f/2.8 Wide Angle |
|---|---|---|
| Brand | Tamron | Vivitar |
| Mount | Olympus OM | Olympus OM |
| Type | Prime | Prime |
| Focal length | 28mm | 28mm |
| Max aperture | f/2.5 (faster) | f/2.8 |
| Released | 1979 | n/a |
| Format | full-frame | n/a |
| Groups | 7 | n/a |
| Af motor | none | n/a |
| Elements | 7 | n/a |
| Weight g | 180 | n/a |
| Filter mm | 49 | n/a |
| Length mm | 37.5 | n/a |
| Diameter mm | 64.5 | n/a |
| Min focus m | 0.25 | n/a |
Tamron 28mm f/2.5 Adaptall-2
A 28mm f/2.5 manual-focus wide-angle prime lens, the Tamron 28mm f/2.5 Adaptall-2 is designed for Olympus OM mount bodies. The wide view suits landscapes, architecture and environmental shots.
Vivitar 28mm f/2.8 Wide Angle
The Vivitar 28mm f/2.8 Wide Angle is a manual-focus wide-angle prime lens covering 28mm at f/2.8 for Olympus OM mount cameras. The wide view suits landscapes, architecture and environmental shots.