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Tests and reviews for the lens Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Canon
Measurements and specifications
| Announced | 2012-09-17 |
| Indicative price (USD) | 499 |
| Aperture | f/2.8-4 |
| Focal range (mm) | 17 - 70 |
| Filter diameter (mm) | 72 |
| Max diameter (mm) | 79 |
| Mount type | Canon EF-S |
| Stabilization | Yes |
| AF Motor | HSM |
| Zoom type | Ring |
| Rotating front element | No |
| Tripod mount | No |
| Color | Black |
| Full-Time manual focus | No |
| Number of lenses | 16 |
| Number of groups | 14 |
| Diaphragm blades | 7 |
| Circular aperture | Yes |
| Length (mm) | 82 |
| Weight (gr) | 470 |
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Further readings for the Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Canon
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.
Lens Review
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March 01
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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. |
Comments
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Added by Mato34 |
March 03
Regarding three versions of Sigma 17-70
I'm a Nikon user, and got my Sigma 17-70/2.8-4.5 (first version) when bought my D300.
I was really happy and amazed of how sharp could be that lens, and even I got the Nikon 16-85 VR only to sell it some time later because I liked way more the microcontrast and clarity of the Sigma. Then the 17-70 OS version showed up, and being so happy with the first version I bought this OS one. But I was shocked because results weren't so good. Tried three copies, and below 35-50 mm field curvature was really a problem even at f/8: focus on the center and get blurried sides, focus on sides and get blurried center. It was so heavy that I almost couldn't believe it, but I was seeing it... A couple of years ago I could test a new sample from a friend that didn't show that field curvature (???), but anyway results weren't that good, my old 2.8-4.5 was still better on corners closing at f/5.6 than the OS at f/8. And now here comes this C version, and again I'm quite excited about it. Well, not that much now, because when comparing measurements of the three versions at 17 and 24 mm I can see that the first one still delivers sharp corners, but not so the OS nad C versions. Can wait for real samples, but I have liked to see something different at the wide end in the corners. Saludos! Reply |