jej826 wrote in post #2689748
Who looks at posters from inches away?Why would you want to?That would be like looking at a billboard from a couple feet away.Who does that?
Have you ever walked into a gallery and noticed all the people looking at the photos right up close. A large photo with fine detail draws the person in closer to explore this detail. If you have a photo which blurs this fine detail, your audience will be very disappointed when viewing up close. I've seen this time and again where an image looks great far away, but up close it totally falls apart as people come in for more detail. This is where you'll definitely notice a difference between images blown up from a 5D and 10D. No comparison as far as I'm concerned. There is also a leap when the images are from medium / large formats scanned to high resolution. Again, the fine detail leaps ahead of the 5d image.
Of course, if the original image did not have fine detail, then the 10D is just fine.