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01-20-2009, 08:13 AM   #16
Todd K.


QuoteOriginally posted by Hannican Quote
Where's your evidence of these failures Todd? I haven't heard anything about them...
Read all about it:
My DA*50-135 is Dead! [Page 1]: Pentax SLR Talk Forum: Digital Photography Review

For what it is worth I am about to send my 16-50mm in for the same problem. Optically it is great, and I have made quite a bit of money with it, but the SDM seems to be causing a lot of problems.

01-20-2009, 06:43 PM   #17
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unbelievable @ Todd K.

I guess I'll go with Tamron, or a comparable Sigma.
01-20-2009, 07:16 PM   #18
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aside from what ever "failures" have been reported, you need to consider what you shoot.

both a 50-135 (or 150 with the sigma) or a 70-200 will work well.

You trade off length for weight reduction.

it also depends on the rest of your lenses, if you have a 16-50, the 50-135 fits well, if you have a 20 somethin gto 70/75 the 70-200 miught be better
01-21-2009, 02:45 AM   #19
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QuoteOriginally posted by RonMexico Quote
unbelievable @ Todd K.

I guess I'll go with Tamron, or a comparable Sigma.
I just pull the triger on tamron


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