Sony DT 50mm F1.8 SAM vs Minolta AF 50mm f/1.7
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Sony DT 50mm F1.8 SAM is faster by 9.6 stops (f/1.8 vs f/50.0), letting in more light.
- Sony DT 50mm F1.8 SAM is lighter by 40g.
- Sony DT 50mm F1.8 SAM is the newer design (2009 vs 1985).
| Spec | DT 50mm F1.8 SAM | AF 50mm f/1.7 |
|---|---|---|
| Brand | Sony | Minolta |
| Mount | Sony A | Sony A |
| Type | Prime | Prime |
| Focal length | 50mm | 50mm |
| Max aperture | f/1.8 (faster) | f/50.0 |
| Released | 2009 | 1985 |
| Blades | 7 | 7 |
| Format | aps-c | full-frame |
| Groups | 5 | 5 |
| Af motor | SAM | screw-drive |
| Elements | 6 | 6 |
| Weight g | 170 (lighter) | 210 |
| Filter mm | 49 | 49 |
| Length mm | 45.0 | 38.0 |
| Min focus m | 0.34 (closer focusing) | 0.45 |
| Max magnification | 0.2 | 0.15 |
Sony DT 50mm F1.8 SAM
A short telephoto prime for APS-C A-mount with a bright f/1.8 aperture. It weighs about 170 g and has a 49mm filter thread.
Pros
- Fast f/1.8 aperture
- Small and light
- Close focus of 0.34 m
- Quiet SAM autofocus
Cons
- Plastic mount and body
- APS-C only
- Tight for indoor use on crop bodies
Minolta AF 50mm f/1.7
Minolta's original AF 50mm f/1.7, a light screw-drive lens for the A-mount. It weighs about 210 g and takes 49mm filters.
Pros
- Light at 210 g
- f/1.7 aperture
- 49mm filters
Cons
- Slow screw-drive AF
- Soft wide open