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Old Jun 25, 2009, 1:42 PM   #21
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Here is a list of some of the lenses I am considering for a good all around lens. Pentax 18-250, Sigma 28-300 and the Tamron 28-300 any recommendations on which is the best? I am leaning more toward the 28-300 as I like the extra reach and like to take some wildlife pics. I also plan to try to make a airshow and would like a lens that would allow me to shoot most of my shots without having to switch lenses as it can be dusty. Eventually although it will be awhile get a Bigma but thats not a option at this time. Again thanks for the advice. I need to post some of my pics so far with the camera. It really takes some excellent photos.

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Old Jun 25, 2009, 3:19 PM   #22
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IMO the Pentax / Tamron 18-250 is certainly the best all arounder. The Tamron and Sigma 28-300 are probably about equal, although I think the Tamron might be slightly better. However if you have the kit lens to cover the wide end, then the Pentax DA 55-300 would probably be the way to go in that price range for the longer reach. Depending on how fast the K7 will focus, the Sigma 70 - 300 APO could be a bad investment, as the faster new Sony A700 has been stripping the focusing gears - this apparently does not happen on the the Tamron 70-300 nor the non APO Sigma 70-300 - of the latter the Tamron is also a good close-up lens, giving a 1:2 magnification ratio.

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Old Jul 6, 2009, 2:25 PM   #23
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Old Jul 6, 2009, 5:16 PM   #24
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i'm with the doc.. 70-300 or 18-250
Passion is in all great searches and is necessary to all creative endeavors. - W. Eugene Smith
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Old Jul 9, 2009, 8:53 PM   #25
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Not that I'm well versed in any lenses. But, I did recently discover that I think I really prefer 18 to 28 as the wider end of an all-around lens. I want to get the 18-250, just haven't yet. Brought my 28-80 as a walk around lens on vacation and found too many times where the 28 just wasn't wide enough for my tastes.

So, between the 18-250 or 28-300, I'd choose the 18-250. Having the K20 you can always crop down to get "closer", but you can't always move back farther.

FWIW, Patty
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