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05-20-2011, 07:19 PM   #1
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Location: Birmingham AL
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Wanted better telephoto zoom Lens. Sigma 100-300 f4

I am a long time user of Pentax film cameras but switched to canon digital because I inherited multiple lenses. I recently bought and used a K5 on our trip to cape Horn, the Chilean fjords and Tierra del Fuego. I wanted to have a camera that could take quality video as well as use some of my old pentax mount lenses. All went well including some very nice movies--but when we encountered 16 condors my old long distance Tokina AT=X 80-400 mm lens was very soft at the long end (a problem I have not had with my Canon 100-400 L and canon 5D when in Africa.
I am looking for a Sigma 100-300 f4 and also am considering the 120-400 version. I can't justify the f 2.8 version, given the few times I would use it and the cost.
Suggestions and help would be appreciated.

05-20-2011, 11:06 PM   #2
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Join Date: Mar 2009
Location: Adelaide.
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The sigma 100-300mm f/4 APO EX DG is superb, my only complaint is that it isn't very good at close focusing and the 9 bladed aperture isn't rounded. Apart from those nitpicks it is an excellent lens - take a look at my gallery, many of my wildlife images were taken with the sigma 100-300mm f/4.
05-22-2011, 10:03 AM   #3
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Location: Birmingham AL
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better lens post.

Thanks for your note. I will continue to look for that lens that seems unavailable at the present. However the 120-400 is available for reasonable cost.
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