| Tamron 17-50mm f/2.8 Di II Specifications | |
| Frame Coverage | APS-C |
| Lens Construction (groups) | 13 |
| Lens Construction (elements) | 16 |
| No. of Diaphragm Blades | 7 |
| Minimum Aperture | 32 |
| Closest Focusing Distance | 0.27m (10.6") |
| Maximum Magnifcation | .22x |
| Filter Diameter | 67mm |
| Maximum Diameter x Length | 74mm x 81.7mm (2.9" x 3.2") |
| Weight | 430g (15.2oz) |
Review Summary
Good performance, a versatile zoom range, and f/2.8 maximum aperture make the Tamron 17-50 a good choice for a standard zoom on APS-C bodies. The Canon 17-55mm IS adds a little more reach and image stabilization but will cost you more than twice as much.
Good performance, a versatile zoom range, and f/2.8 maximum aperture make the Tamron 17-50 a good choice for a standard zoom on APS-C bodies. The Canon 17-55mm IS adds a little more reach and image stabilization but will cost you more than twice as much.
Reviews
Source
Photodo.com
With the exception of the distortion at the wide end, this is a very competent lens and a considerable jump up from the general standard of kit lens that it would replace. There is little else that lets it down and good resolution across the frame that is acceptable even when the lens is used wide open commend it.
The-Digital-Picture.com
The Tamron 17-50mm f/2.8 XR Di II Lens delivers very good image quality in a small, light, fast and affordable package. Add in the very popular focal length range and you have a lens that is just right for many digital SLR camera owners.
Bob Atkins
The Tamron SP AF17-50mm F/2.8 XR Di-II LD Aspherical [IF] is a good lens. It's pretty sharp at all focal lengths, even wide open, but contrast does go up a notch when stopped down from f2.8 to f4.
