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08-03-2012, 04:56 PM   #1
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Da* 55mm 1.4 wont af at infinity

Noticing my DA*55mm 1.4 wont lock focus at infinity. I can get it there with quick shift but AF isnt working. Tried calibrating the front and back focus and the problem persists.

I went to exchange the lens but tge shop says its a known problem and they wont exchange or return it because of this. Even though its only three days old. They will send it out to the repair depot.

Ideas?

08-03-2012, 05:02 PM   #2
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Er what? The shop won't exchange or allow return because it is a known problem? Bullshit - I don't care if it is a known problem, it's still a problem. The shop should take the return or exchange because they get reimbursed through warranty.
08-03-2012, 06:34 PM   #3
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remove filter if You use it.
08-04-2012, 03:24 AM   #4
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It is not a known problem and they should take it back and get you a decent lens if they want to continue having your business. My 55 has no trouble focusing at infinity.

08-04-2012, 01:52 PM   #5
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Original Poster
I went to their main store and they exchanged it. Worked fine in store. But malfuctioning once i got outside... Same issue.

Not running a filter. It WILL focus and lock uaing live view. But not with the OVF.

So went back there. They started blaming my K5. or my custom settings. They only got a K01 and a K30 in stock right now, and it performs fine in the store on those bodies, but on my K5 same issue. Since they don't got any more lenses in stock to exchange they are offering to send it into Pentax for their professional opinion.

I love the lens, I love it a lot. So I think I'll try to adjust backfous/front focus and run some tests with it to see if maybe its user error...

Last edited by Wired; 08-04-2012 at 02:08 PM.
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