Found this site – Design215 – while trying to decide what kind of camera to get (I’m looking at the Olympus Evolt 300 mainly cause I’ve borrowed Newell’s and loved using it). The 300 is an 8 megapixel…which means according to the graph on this site, max size to achieve photo quality would be roughly eight by ten.
I’m sure I could go a bit bigger without worries. My (very) old Konica is a film camera and I’ve been using my Canon HV20 for stills…but it lacks the quality I want. So, now to decide what I really need vs. what I think I want.
Added August 2 – there’s more at Design215 than the chart – has a wealth of information for folks interested in digital and design.