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Old Jun 27, 2005, 3:47 PM   #1
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I've got a new istDS and I have a sigma 18-125 DC lens. It's a great set up but I'd like to obtain a telephoto zoom made for Digital Cameras. I'd like to get 100-300 F2.8 but I can't seem to find one anywhere. Do they make them for Digital SLR's? I'm an ameteur (you can probably tell) and am having trouble finding this. I would also like to get a teleconverter with it. DoI have to have a teleconverter made for digital cameras or will any "match up" teleconverter work? Any other suggestions?

Someone told me that if I use a standardSLR lens (not made for digital cameras) that the image quality will be just as good but that the non-digital 100-300 lenson a digital camera would really be like 150-450 due to the difference in "field of view" on digi cameras. Is that true? If so, is that the only real difference, just the 1.5x zoom?If that's the only difference and it's far cheaper, that sounds like the logical way to go. Oh, someone told me that the non-digi lenses are heavier. So what? Any help would be appreciated. Thanks.

Nagootie
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Old Jun 27, 2005, 5:48 PM   #2
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"I'd like to get 100-300 F2.8..."

There is a Sigma AF 120-300mm F2.8 on eBay, and it can be bought for pennies.........240,000 of them. Sorry, the lens you want is NOT going to be cheap.
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Old Jun 27, 2005, 6:28 PM   #3
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Thanks Lucky, I'll check out the lens on EBay.

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