Comparing the 20D and the 5D again, how much would you be able to crop off of the 5D in inches before you got down to a 20D's pixel count? I mean how much more room for cropping will you gain in inches from say a 12 x 18 print? 1/2 and inch total, one inch, 2 inches, etc.?

Uhm, isn't this just a question of comparing the pixel dimensions of the two cameras?

Go to either Canon USA's web pages for the Digital SLRs, or to DPReview's excellent product information pages.

Why would you want to crop to a pixel count? Usually you crop an image for compositional reasons, but if you insist on getting a 5D image containing the same number of pixels as a 20D image, just go to 'image size' in PS and reduce the dimensions of the 5D image till you get 24MB.

Well, to reply to both of you, I'm trying to figure out how much more I can crop using the 5D and continue to get "at least" 20D quality regarding pixel density and resolution. The reason is that for 12 x 18, 8.2 MPs is pushing the quality envelop, although I have seen 20 x 30s printed from the 20D that look acceptable, good even. But at 20 x 30, you can't lose too much more pixels using a 20D and have the results be acceptable.

So, if you resize your RAW image to 12 x 18 inches, I'm wondering how much more image you have to play with crop wise using a 5D and not going below the 20Ds resolution and pixel count.

So you can see this question is really about cropping for composition and artistic reasons.

Seeing as you're not willing to dig up the data yourself:

5D: 4368x2912
20D: 3504x2336

I hope you can do can do simple maths.

Yeah that's easy enough. Thanks.