I use Photoshop to check the

resolution of my pictures from Sony p10(4MP). All
show 72 pix/inch, no matter I use fine or standard mode. I need to send files for pro print. It needs 300
pixl/inch. THat's the standard for high end print.
How do I make my pictures to 300 pix/inch? or any
camera take pictures at 200 pix/inch at least?

I don't really understand that home ink jet prints claim to print 1200 or 4800 dpi? while pro print only needs files at 300 pix/inch. Would you tell me the details more?

Thanks so very much

jane

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