Pentax SMC Takumar 50mm f/1.4 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
- Pentax SMC Takumar 50mm f/1.4 is faster by 1.7 stops (f/1.4 vs f/2.5), letting in more light.
- Tamron 28mm f/2.5 Adaptall-2 goes wider (28mm vs 50mm).
- Pentax SMC Takumar 50mm f/1.4 reaches further (50mm vs 28mm).
| Spec | SMC Takumar 50mm f/1.4 | 28mm f/2.5 Adaptall-2 |
|---|---|---|
| Brand | Pentax | Tamron |
| Mount | M42 | M42 |
| Type | Prime | Prime |
| Focal length | 50mm | 28mm (wider) |
| Max aperture | f/1.4 (faster) | f/2.5 |
| Released | n/a | 1979 |
| Format | n/a | full-frame |
| Groups | n/a | 7 |
| Af motor | n/a | none |
| Elements | n/a | 7 |
| Weight g | n/a | 180 |
| Filter mm | n/a | 49 |
| Length mm | n/a | 37.5 |
| Diameter mm | n/a | 64.5 |
| Min focus m | n/a | 0.25 |
Pentax SMC Takumar 50mm f/1.4
This 50mm f/1.4 fast manual-focus standard prime lens from Pentax fits M42 mount cameras. A classic Takumar lens from the Pentax screw-mount era, popular for vintage-lens adapting.
Tamron 28mm f/2.5 Adaptall-2
Tamron 28mm f/2.5 Adaptall-2: a manual-focus wide-angle prime lens with a 28mm focal length and a maximum aperture of f/2.5, made for M42 mount cameras. The wide view suits landscapes, architecture and environmental shots.