problems with this lens
Re: problems with this lens
6
You have an optically decentered lens. The DA 16-85 is an excellent lens when it is manufactured properly. Unfortunately many copies of it aren't manufactured properly. I had three copies of this lens in a row with optical decentering.
Your lens cannot be repaired. You must ask for a replacement copy. Then give that lens a brick wall test across the zoom range. If it is also bad, send it back for another copy. Continue until you get a good copy.
Optical decentering from sloppy manufacturing is a continuing problems with Pentax lenses. Quality control is up to the customer.
Joe
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