| Announced | 2006-05-01 |
| Indicative price (USD) | 1046 |
| Aperture | f/2.8 |
| Focal range (mm) | 17 - 55 |
| Filter diameter (mm) | 77 |
| Max diameter (mm) | 83.5 |
| Mount type | Canon EF-S |
| Stabilization | Yes |
| AF Motor | USM |
| Zoom type | Ring |
| Rotating front element | No |
| Tripod mount | No |
| Color | Black |
| Full-Time manual focus | Yes |
| Number of lenses | 19 |
| Number of groups | 12 |
| Diaphragm blades | 7 |
| Circular aperture | Yes |
| Length (mm) | 110.6 |
| Weight (gr) | 645 |





To provide photographers with a broader perspective about mobiles, lenses and cameras, here are links to articles, reviews, and analyses of photographic equipment produced by DxOMark, renown websites, magazines or blogs.
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For many people an introduction to photography is through a compact camera: usually, these days, one with a zoom lens covering medium-wide through to short telephoto. The next step is often an SLR and the “standard” zoom, covering the same range. The quality of this “standard” zoom can be the difference between great results and disappointment, so the choice is important. This Sigma 17-70 f2.8-70 f2.8-4 DC Macro OS HSM C Canon is both good and versatile, no disappointment here. |
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New results are available on dxomark.com for the Tamron SP 17-50mm F/2.8 Di II XR VC LD Aspherical IF lens (Nikon and Canon mounts). This new review, along with our recent review of the Sigma 17-50mm, completes a set of measurements for trans-standard luminous lenses. |