Is the 15-85mm really faster than 18-55 or 18-135?

Started Apr 6, 2013 | Discussions thread
Dareshooter
Senior MemberPosts: 1,112
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Re: Is the 15-85mm really faster than 18-55 or 18-135?
In reply to MaxCh, Apr 6, 2013

MaxCh wrote:

Thank you! What exactly is a faster lens? Does it mean it focuses faster? And if it does are we talking specifically in AF? Does the lens focus faster if I use single focus point ? MF?

Thanks again!

Your welcome and I'm sorry I should have said USM has faster AF. Best to use a single focusing point not just for speed but for accuracy because with all focus point active the camera will usually focus on the nearest thing to it which may not be what you want. Not sure how to answer your last point though,if you could expand on that one I'll do my best to answer

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