Sigma 17-70mm f2.8-4 contemporary - Any further word?

Started Mar 23, 2013 | Discussions thread
Brev00
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Re: Have you seen lenstip's review?
In reply to MAC, Mar 27, 2013

MAC wrote:

mabasa wrote:

MAC wrote:

so far, my 15-85 looks better

So you've had one of these? If not, how can you tell? There are not many systematic reviews comparing them both. This is one.

last I checked, the 17 isn't as wide as my 15

I'd be worried about the sigma's performance on both ends - old one compared below

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=736&Sample=0&FLI=0&API=0&LensComp=713&CameraComp=474&SampleComp=0&FLIComp=5&APIComp=0

To compare two different lenses, I think one should compare them over shared focal lengths at the same apertures with the understanding that one might be stopped down a bit more than the other.  If you look at the Canon and the Sigma at 24 and 50, I think you will find that the Sigma is usually sharper in the center, closer in the middle, and at times softer at the edges than the Canon.    I took a brief glance at f4-f8 and did not see any great superiority.  I did not look at longer fl's since that is supposed to be the Sigma's weak spot.  The fact that you are satisfied with your lens is great but I will keep my Sigma.  I kind of have to since I shoot Nikon.

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