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02-28-2011, 06:45 AM   #1
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k5 and Tamron 70-200 Macro combo

so, a question to all the owners of the combo
how is the AF ? the tamron seems ideal for me, considering the price and my only doubt is the AF

02-28-2011, 08:34 AM   #2
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QuoteOriginally posted by dankoBanana Quote
so, a question to all the owners of the combo
how is the AF ? the tamron seems ideal for me, considering the price and my only doubt is the AF
The AF of that combo is decent, certainly not slow, but not blazing fast either.

The K-5 is an improvement over previous bodies, but whether or not it is good enough depends on your expectations and your application. I actually meant to take my Tamron 70-200/2.8 out with me yesterday (before I sell it) as I was testing out my new FA*80-200/2.8 (which will replace the Tamron) so that I could better compare the AF speeds of the two lenses.
02-28-2011, 08:57 AM   #3
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QuoteOriginally posted by dgaies Quote
The AF of that combo is decent, certainly not slow, but not blazing fast either.
how would you compare it to the DA* 50-135 & K5 in terms of AF and IQ?

i know the Tamron is double the weight, but its cheaper (a lot), significantly longer, has macro capabilities and great IQ

Last edited by dankoBanana; 02-28-2011 at 09:10 AM.
02-28-2011, 09:12 AM   #4
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QuoteOriginally posted by dankoBanana Quote
how would you compare it to the DA* 50-135 & K5 in terms of AF and IQ?
IQ of the 70-200 is on par with the 50-135, maybe even a little sharper wide open at f/2.8 over their common range. Really nothing (in my mind) to complain about when it comes to the IQ of either the Tamron 70-200 or the DA*50-135.

In terms of AF, the 50-135 is a little slower, but quieter. The throw on the 50-135 is longer, which accounts for some of the slow down. Manually focusing on the 50-135 is much nicer, and having the quick-shift focusing feature allows you to prefocus really easily compared to the clutch/body switch combo on the 70-200.

In terms of size, the 70-200 weights a good bit more than the 50-135, and is longer as well. I strongly prefer the size, weight and balance of the 50-135 on my K-5, but if you want/need the extra reach, there is a price to be paid (in terms fo physical size).

There's also a active thread discussing the 50-135 vs 70-200, here's a link.

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