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06-05-2007, 12:24 PM   #16
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I have a DA50-200 and Pentax FA80-320 that is similar to the Sigma. For me, the considerable extra bulk and weight means the 80-320 tends to stay home in a drawer while the 50-200 gets to go out and play. If I was more of a wildlife shooter I might change my tune though.

06-05-2007, 01:09 PM   #17
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On my 50-200 the image quality is noticeably poor at the 50 end (compared to a prime) but it sharpens up nicely from there. As others have stated, it is lightweight, inexpensive (but feels well built), and it will travel with you because of this. It's actually the only zoom I own. My hiking kit is the DA21, DA40, and the 50-200.
06-05-2007, 06:10 PM   #18
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QuoteOriginally posted by wildboar Quote
(but feels well built)
Feels better built than the 16-45 to me, although the 16-45 has a better zoom & focus ring feel.

*edit* I take that back.

Last edited by SupremeMoFo; 06-06-2007 at 06:08 AM.
06-06-2007, 07:24 AM   #19
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QuoteOriginally posted by SupremeMoFo Quote
Feels better built than the 16-45 to me, although the 16-45 has a better zoom & focus ring feel.

*edit* I take that back.
I'm not certain what you're saying here--perhaps you're changing your mind and ranking the 16-45 over the 50-200? Anyway, this inspired me to start another thread on the topic.

06-06-2007, 08:02 PM   #20
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Yep, 16-45 is definitely better than the 50-200, as you'd hope.
06-06-2007, 08:47 PM   #21
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I think it all comes down to how much reach you think you will need/want. I own both the Pentax 50-200 and the Tamron 70-300 LI DI. I haven't used the 50-200 since I got the tamron 70-300. I think the tamron is an excellent lens and I get very good results from it for the most part. Yes, it does exhibit CA given the right (or I wrong depending on how you look at it) conditions. Unfortunately I've lost all the links I had to my posts about the tamron 70-300 with pics. My computer crashed and burned and with it went many links.
You won't be disappointed with either lens. The 50-200 *might* be a better lens, at least that is what most say. The focal lengths are quite different between these two lenses. They are both good performers for me.
06-07-2007, 09:39 AM   #22
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I have both the Sigma 70-300 APO and the Pentax 50-200 kit lens (came with my K100D). I love the Sigma to be quite honest, while it is a bit heavier than the 50-200, it just feels right for me when I am shooting with it. 50-200 is a great lens no doubt and if you are stuck and on a tight budget it is more than worth the money. I managed to get the Sigma 70-300 APO DG for about $250 CDN at a local retailer and it has served me well ever since.

If you get the chance, find a store that will let you attach the lens, see how it feels for you moving around with it. I'll have some pictures up this weekend with the 18-55, 50-200 DA's and my Sigma 70-300 after the Formula 1 weekend

-s
06-11-2007, 08:08 PM   #23
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I have the 50-200 and a older Tamron 70-300, the Pentax is definitely better IQ and quite a bit smaller.

06-11-2007, 08:57 PM   #24
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I think I answered this thread elsewhere, but here's my informal comparison...

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/4768-lens-comp...-70-300-a.html
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