Olympus OM Zuiko Auto-W 35mm f/2 vs Tamron 28mm f/2.5 Adaptall-2
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Olympus OM Zuiko Auto-W 35mm f/2 is faster by 0.6 stops (f/2.0 vs f/2.5), letting in more light.
- Tamron 28mm f/2.5 Adaptall-2 is lighter by 60g.
- Tamron 28mm f/2.5 Adaptall-2 goes wider (28mm vs 35mm).
- Olympus OM Zuiko Auto-W 35mm f/2 reaches further (35mm vs 28mm).
| Spec | OM Zuiko Auto-W 35mm f/2 | 28mm f/2.5 Adaptall-2 |
|---|---|---|
| Brand | Olympus | Tamron |
| Mount | Olympus OM | Olympus OM |
| Type | Prime | Prime |
| Focal length | 35mm | 28mm (wider) |
| Max aperture | f/2.0 (faster) | f/2.5 |
| Released | n/a | 1979 |
| Format | full-frame | full-frame |
| Groups | 7 | 7 |
| Af motor | none | none |
| Elements | 8 | 7 |
| Weight g | 240 | 180 (lighter) |
| Filter mm | 55 | 49 |
| Length mm | 42.0 | 37.5 |
| Diameter mm | 60.0 | 64.5 |
| Min focus m | 0.3 | 0.25 (closer focusing) |
Olympus OM Zuiko Auto-W 35mm f/2
A fast, small manual 35mm from the OM line, weighing about 240 g. It focuses as close as 0.3 m.
Pros
- f/2 aperture
- Compact
- Close focus 0.3 m
- Metal build
Cons
- Manual focus only
- Vignetting wide open
- Old coatings flare
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.