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Old Aug 3, 2010, 5:03 AM   #11
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I agree the 18-55 is a good lens for a kit. if you check the web i know of sites offering 18-55 plus 44-250 as a complete kit
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Old Aug 3, 2010, 7:19 AM   #12
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aye, only thing I'm afraid of is: will it be fast enough to keep up with jumpy dogs in somewhat dark areas?

My old camera was a pentax k10d with a kitlens like this and I hated it for being so slow and awefull in darker area's.

I will be upgrading lenses anyway but a nice starter lense that I could keep using would be awesome.

Was thinking for either a Canon EF-S 18-135mm f/3.5-5.6 which can be bought in kit aswell.

or the Sigma 24-70mm F2.8 EX DG Macro.

Or should I just stick with the standard kitlens?
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Old Aug 3, 2010, 7:50 AM   #13
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The Canon 18-135 isn't very good. It's not nearly as good as the 18-55, and your list of concerns about that lens are not addressed by the 18-135. The Sigma 24-70/2.8 (either one) would be a good choice. The non-HSM version might not be much quicker to focus than the 18-55, but the larger aperture will help.
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Old Aug 3, 2010, 9:02 AM   #14
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Yep - if you have erratically moving subjects in low light conditions, you have an issue. As tcav mentioned a 2.8 lens will help - but without HSM/ring usm the lens will still have issues focusing fast enough to track said moving subject. And while flash certainly helps in low light you should be aware that focus-assist does not operate when AI-Servo mode is used. So you can't track a subject using flash assist.
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Old Aug 3, 2010, 1:06 PM   #15
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In pure focus speed, which one should be better.

Sigma AF 18-50mm f/2.8 DC EX macro
or
Tamron AF 17-50mm f/2.8 SP Di II

or should I just go for a
Sigma 17-70mm F2.8-4 DC Macro OS HSM ?
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Old Aug 3, 2010, 2:44 PM   #16
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There's no reason to expect that either one would be faster than the other, and while the Sigma 17-70 OS HSM will probably focus faster, it's not as good optically.
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Old Aug 4, 2010, 12:51 AM   #17
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Think for now I'll just stick with the kitlens and an optional 50mm F1.8 or 1.4!

Will see how that goes.

Thanks for all the advice!
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