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02-14-2008, 11:38 AM   #1
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Decent zoom lens for under 200 bucks?

I have a Pentax K100D camera and currently using an old zoom lens on it. But the autofocus bug has bitten me and I am starting to look into purchasing an autofocus lens for this camera.

Can a decent zoom be found for my price range? Any info or links would be appreciated.

Thank you.


02-14-2008, 11:41 AM   #2
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It would help if you mentioned the focal length range you're looking for
02-14-2008, 12:43 PM   #3
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except it is not autofocus, a really good 70-210 is the Series 1 F3.5 wieighs a ton, but fast, easy to focus and zoom with a single ring.

you won't get anything of that speed and optical quality for under 1000 in autofocus.
02-14-2008, 12:46 PM   #4
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What focal range do you need? Are you using zoom in the correct way here? Zoom just means the focal length can be adjusted, do you want a telephoto zoom, a normal zoom, a wide angle zoom?

02-14-2008, 01:20 PM   #5
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The DA 50-200 is a damn good deal for $199 - Nice colors, good bokeh, sharp images. You'll like it. It's a good weight, includes hood, 52mm threads.. Go for it.
02-14-2008, 04:42 PM   #6
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Right now, I"m using my vintage 1984 Soligor 75-250 zoom lens on it.

I am looking for something around that "power" (you'll have to excuse my ignorance, since I don't know all the correct wordage stuff).

Just looking for a good, solid, autofocus lens in that "power" area.

Thanks a bunch.

02-14-2008, 06:34 PM   #7
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The Tamron 70-300 LD Di is in that price range, isn't too heavy, and other than a bit of purple fringing in high contrast scenes, it is a darn nice lens for the price. I paid $169 for mine about a year ago.

Here are a few samples for you..

02-15-2008, 05:44 AM   #8
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There is also the Sigma 70-300. Non-APO for about $140, APO for around $200. Comparable in IQ to the Tamron, but the APO version seems to handle the fringing better.

02-15-2008, 06:16 AM   #9
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Yup, My vote would go to the Sigma APO closely followed by the Tamron. Both great choices at a very reasonable price range. Don't go cheap and get the older Sigma! It will not be worth the few dollars you save. Another excellent choice is the older Pentax SMC F 70-210 f4-5.6. Very nice lens that is sharp with good colour qualities. The Sig/Tam lenses have a 1:2 macro which is a great bonus and they are longer, but I liked the Pentax for the picture quality best. Now if you can find one in good shape...

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