| I own it | I want it | I had it |
| 296 | 21 | 93 |
The Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) is a good value fast standard zoom lens for APS-C cameras, offering a constant aperture of F2.8 and covering an effective focal length range of 26-75mm. Optical construction comprises 16 elements in 13 groups, and at its minimum focus distance the 17-50mm gives a maximum reproduction ratio of 1:4.5 - not 'true' macro, but usefully close nonetheless. Tamron also makes a newer image-stabilised version of this lens for Canon and Nikon cameras.
| Lens type | Zoom lens |
| Focal length | 17–50 mm |
| Image stab. | No |
| Lens mount | Canon EF, Pentax KAF, Sony Alpha, Nikon F (DX) |
| Max aperture | F2.8 |
| Min aperture | F32.0 |
| Min focus | 0.27 m (10.63″) |
| Max magnification | 0.22 x |
| Weight | 430 g (0.95 lb) |
| Length | 82 mm (3.22″) |
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 | 18.0 megapixels 3″ screen APS-C sensor |
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