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10-25-2009, 01:24 AM   #16
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QuoteOriginally posted by max11 Quote
Any new opinion?
is the sigma slow?
It was my understanding that the tamron was the ones having AF problems especially at 200.

10-25-2009, 01:50 AM   #17
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The Tamron had no such AF problems at any FL in my hands from the 2 copies that I had. AF is actually quite speedy considering the focus throw (both the Sigma and Tamron need to travel quite a distance with AF, but Sigma may have the edge by virtue of its high-acceleration HSM action in the full-swing of AF).
10-25-2009, 04:01 AM   #18
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Sigma does make a 50-150mm 2.8 HSM as well.
10-25-2009, 08:38 AM   #19
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I just ordered myself a Da* 50-135

The Sigma 70-200 is a good lens, full-frame and the extra length would certainly be nice.
At the same time, I'm hoping to make this lens part of my usual carry-around kit (along with the Sigma 10-20 and Da* 16-50) and the Pentax is half the weight and significantly smaller. My housemate has the 70-200 and it is a proper commitment to take that lens anywhere.

I also have been enjoying the weather seals and build quality on my 16-50 since I got it.

The 50-135 range sounds a bit limiting, but I mostly want the lens for street photography, gigs, etc... I think the 200mm-equivalent range is a good one for that purpose.
The way I figure, even with the 70-200, I would want to buy a proper ultra-tele someday if I ever develop a knack for wildlife photography.

10-27-2009, 02:50 PM   #20
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Are you still happy with your 50-135?
10-27-2009, 03:13 PM   #21

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I'm pondering selling my 70-200 to pick up the DA* 50-135 and eventually the DA* 200 or 300.

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