Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM vs Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM goes wider (16mm vs 17mm).
| Spec | smc DA* 16-50mm F2.8 ED AL (IF) SDM | SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) |
|---|---|---|
| Brand | Pentax | Tamron |
| Mount | Pentax K | Pentax K |
| Type | Zoom | Zoom |
| Focal length | 16-50mm (wider) | 17-50mm |
| Max aperture | f/2.8 | f/2.8 |
| Format | aps-c | aps-c |
| Weight g | 565 | n/a |
| Filter mm | 77 | 67 |
| Length mm | 99.0 | n/a |
| Diameter mm | 84.0 | n/a |
| Min focus m | 0.3 | 0.27 (closer focusing) |
Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM
A constant f/2.8 standard zoom for Pentax APS-C bodies, with SDM focusing. It weighs about 565 g and takes 77mm filters.
Pros
- Constant f/2.8
- SDM autofocus
- Weather-resistant build
- 77mm filters
Cons
- APS-C only
- SDM motors in some units have failed with age
- No lens stabilization
Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)
A popular APS-C standard zoom with a constant f/2.8 aperture, much used on Pentax bodies with in-body stabilization. It has a 67mm filter thread and a minimum focus distance of 0.27 m.
Pros
- Constant f/2.8
- Compact 67mm filter size
- Constant aperture with in-body stabilization support
- Works with Pentax in-body stabilization
Cons
- APS-C only
- No weather sealing
- Plastic build
More comparisons for Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM
- Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM vs Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)
- Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM vs Sigma 17-50mm f/2.8 EX DC OS HSM
- Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM vs Sigma 17-70mm f/2.8-4 DC Macro OS HSM
- Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM vs Tamron SP 15-30mm f/2.8 Di VC USD