Kinda off topic resolution question

[Chris Strobel]

Hi, ok I have been toying around with these little point n shoot digicams and am wondering what resolution to send em to on my 4800.The default size on my Canon A640 is width=20.267, Height=15.2, Resolution=180ppi.On my 4x5 and 8x10 scans I always send them at 360ppi.On my Canon dslr's they default at 240ppi and thats what I send them at.So should I up-sample these 180ppi point n shoot shots to say 240ppi, or just leave em at their native ppi.Thanks!

Chris

[Marko]

Chris, printed pages in those shiny magazines are routinely done at even lower resolution than 180 dpi, and yet look pretty good.

Also, bear in mind that individual pixels on those 1/1.8" sensors yield much more noise and less DR than those on a DSLR. There must be a point where increasing resolution only amplifies those imperfections, while there must be a bottom line resolution where the details start to get lost.

Why don't you run a simple test with 180, 240, 300 and 360 dpi? I think that'll be a very illustrative answer. :)