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Lenses: Canon Zoom Telephoto EF 100-300mm -- USM vs IS


liparig 17 233 United States
13 Dec 2005 3:19PM
I am looking into replacing my Sigma 70-300mm telephoto lens for a hopefully much better Canon one. There are 2 of them and I know the IS one is the better quality and the price shows that.

My question is, is there enough of an improvment to warrent the IS version?

Does any one have either of these lenses? Can you tell me what you think?

1) Zoom Telephoto EF 100-300mm f/4.5-5.6 USM Autofocus Lens
Cost: $279 US

2) Zoom Telephoto EF 70-300mm f/4-5.6 IS Image Stabilizer USM Autofocus Lens
Cost: $554 US
elikag 16 749
13 Dec 2005 9:42PM
The 70-300 is better - optically - than the 100-300. And the added IS is a great improvement. If you have the money, go on 70-300.

Ilia Kagan.
gemm 17 800 United Kingdom
14 Dec 2005 11:37PM
I'm not sure if 70-300 is better optically. I haven't used one, so I couldn't really tell. But I have used 100-300 and I think it has better features (except for IS), e.g. ring USM, full-time manual focus, non-rotating front element. If 70-300 is built the same way as old 75-300, then 100-300 is definitely better built. I guess it depends on what features are important to you.
tonyvizard 19 19
15 Dec 2005 12:53AM
I'm sure the IS is a great feature if you've got the cash but I have the 100-300 f4.5-5.6 USM and I think it's a good and solid lens. I bought it because I saw a review in a UK magazine indicating a good optical performance at maximum aperture, just where you want it when handholding. I suppose it depends on whether you see yourself handholding most of the time - if yes I'm sure IS is worth having.

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