I just received a 10-22mm lens to use on my Ti2. it won't autofocus

[sudsalum]

New 10-22 lens won"t autofocus. I tried my three other lenses in my bag and they all worked fine. I tried cleaning the contacts and made sure the lens was all the way on. Any suggestions? Oh, and I fully charged the battery so that's not it.

[RobertTheFat]

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@sudsalum wrote:

New 10-22 lens won"t autofocus. I tried my three other lenses in my bag and they all worked fine. I tried cleaning the contacts and made sure the lens was all the way on. Any suggestions? Oh, and I fully charged the battery so that's not it.

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And you checked the AF/MF switch, right? 

As it happens, I didn't, at an important shoot earlier this year, which is why I dare to bring it up. I'm not trying to insult your intelligence, just to cover all bases.

[ScottyP]

I've done that before. Very puzzling until you figure it out.

[ebiggs1]

" I tried cleaning the contacts ..."

That rarely works.  Especially if you change the lens a few times.  They tend to clean themselves.  Can you return it?  If, yes, do so.