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DPChallenge Forums >> Photography Discussion >> minimum pixels for 5x7...
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04/13/2010 09:21:15 PM · #1
What dimensions in pixels, would you say is the minimum to print out a good quality 5x7 photo?
04/13/2010 09:26:31 PM · #2
In general, you want to be 150 dpi or better. So, 5x7 would be 750 x 1050, absolute minimum.

200 dpi is your best bet, or 1000 x 1400.

Of course, this does not factor viewing distance into the equation. The higher you go in dpi, the closer you can view a photo without seeing major effects.

But, 150-200 dpi is fine for most normal viewing distances. I generally target 171 for images that will be printed and displayed online. This gives 1024 pixels in one direction, 171 dpi at 5x7 and 207 dpi at 4x6.

Message edited by author 2010-04-13 21:29:09.
04/13/2010 10:10:00 PM · #3
If you're going through a photo album with someone and looking at each picture closely, 450 or more dpi (2250x3150).
If you're putting it in a frame where someone can pick it up and look at it fairly closely, 300 dpi (1500x2100). <== that's usually okay for 95% of the uses by 95% of the population
If you're putting it in a frame on the wall, you could go as low as 150 dpi (750x1050), but preferably 200 (1000x1400).

Message edited by author 2010-04-13 22:10:49.
04/14/2010 01:00:30 AM · #4
Originally posted by George:

If you're going through a photo album with someone and looking at each picture closely, 450 or more dpi (2250x3150).
If you're putting it in a frame where someone can pick it up and look at it fairly closely, 300 dpi (1500x2100). <== that's usually okay for 95% of the uses by 95% of the population
If you're putting it in a frame on the wall, you could go as low as 150 dpi (750x1050), but preferably 200 (1000x1400).

Most professional photo printers (Fuji Frontier, Noritsu) top out at 300 or 320 dpi, so saving any more than that (at final print size) may not only waste space, but could actually affect the quality by requiring the printer to downsample your image (better than upsampling though). As mentioned, 300dpi is almost always fine, and even 150dpi (minimum for DPC Prints) is almost always "good enough."
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