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Old Jun 12, 2007, 4:40 PM   #1
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If I had a Canon 70-200 2.8 lens and a Canon 20d or 30d camera body will my photos be better, than if I had a Canon XTi body with a Canon 70-200 2.8 lens? thanks for looking.
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Old Jun 13, 2007, 1:11 PM   #2
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For most pictures, no - there will be no difference.
The resolution of the image is slightly different (20D & 30D are 8MP, the XTi is 10MP), maybe the noise profile at higher ISO values is slightly different.

But if you shot in normal conditions with normal settings (say.... ISO200, 1/400 f4) you wouldn't notice the difference.

The biggest issues are probably in usability. What is the interface on the XTi? It doesn't have the second wheel on back, so how do you make changes that would have been done with that wheel on the 20D/30D? For example, exposure compensation.

The AF systems might be different between the classes of camera... but I doubt it matters much unless you're trying to shoot fast moving things or in low light. But that won't effect image quality (Beyond getting/not-getting the shot.)

Eric
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Old Jun 14, 2007, 4:38 AM   #3
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I was under the impression that the 30D and the 400D (XTi) shared the same AF. This is seen by some people as a major improvement other the 350D (XT) if you look at the FredMiranda reviews. Just a thought
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Old Jun 14, 2007, 2:09 PM   #4
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You could very well be right about the AF system being the same.
I haven't paid as much attention to the Rebel line and exacty which parts they are using (it would certainly make sense to do so as it saves Canon money.)

I'm eyeing the 1D MkIII later in the year. Now that has a new AF system.

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Old Jun 15, 2007, 3:13 AM   #5
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Quote:
I'm eyeing the 1D MkIII later in the year. Now that has a new AF system.
That camera looks marvelous,but that's way out of my league and needs

I will upgrade to 30D (or equivalent) when I feel I am a photographer (and not a happy snaper !!). Learning is fun though !!

Also, the viewfinder may be bigger on 20/30D...
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