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11-12-2009, 08:57 PM   #16
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QuoteOriginally posted by Ash Quote
But if you really want a 16-50 (and for the unrivalled IQ, weather sealing and build quality, I believe it's worth it), just bypass the Tamron 17-50. Although it's a fine lens, it doesn't have the solid feel a quality lens should.

See here also:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/75030-da-16-50...t-quality.html
Ok great. How you gone know if you got a good copy? Is it a crap shoot? I am toying with the idea of getting a 2.8 wide zoom and the 16-50 tops my list. But the recurring stories of good copies vs. bad copies......... has Pentax fixed the problem and are all the new one's the best that they should be.......? the Tammy is also in my sights as well because of that......... I want the Pentax though........... and there should not be a "test" to see if you got a good copy; It's Pentaxes' top of- the- line...........

11-12-2009, 09:50 PM   #17
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Just look up the threads for assorted tests. Mine was good out of the box, and still is. The lens that spends more time on the camera even than my 400 LOL
11-12-2009, 10:00 PM   #18
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how about the Sigma 17-70?
11-13-2009, 05:33 AM   #19
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I guess the one thing that I would say is that if there are lenses out there that aren't up to spec, they should be sent back to the manufacturer. I think that part of the problem is that people order these lenses and then send them back and they go right back on the shelf, waiting for the next person to order the same lens. If they have problems, they need to be sent to Pentax to be fixed. Preferrably, when people buy this lens, rather than sending it back to the store, they should send it on to Pentax.

11-13-2009, 12:50 PM   #20
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QuoteOriginally posted by Ash Quote
Comical Albert.
Truthfully, AF on the 16-50 is not always easily locked.
I particularly find AF not locking well at all in moderately low light for subjects at infinity, whereas for the same lighting conditions, close focusing is fine.
That's how my troubles with my first copy of this lens started. It was - eventually - replaced by the importer of Pentax.
11-13-2009, 07:26 PM   #21
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...the occasional hickups with the SDM are the very reason why I have so far held on to my reliable 16-45mm f4.
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