How to increase photo resolution to print enlargements?!

5 replies

catanddog · 02/02/2011 17:39

Help me please! I've got some really nice photographs taken on an iphone 3GS that I would love to have blown-up and printed. Is there anyway of increasing the resolution of these, and or will they look terrible if enlarged to say 15"x15"?

OP posts:

PlentyOfParsnips · 02/02/2011 17:42

How big are they at the moment?

Original poster

catanddog · 02/02/2011 18:28

Between 1.5 - 2 MB

OP posts:

PlentyOfParsnips · 02/02/2011 18:42

That sounds fairly big, they'll probably look OK ... do you have the pixel dimensions? You might need to open them on a computer to find these. You don't want to go below about 150 dpi for print (ideally 300) so if you want 15 x 15 prints, your pixel dimensions need to be at least 2250 x 2250.

Original poster

catanddog · 03/02/2011 07:41

thank you, much much appreciated!

OP posts:

BadgersPaws · 03/02/2011 09:57

I think the resolution of a 3GS's camera is about 2000 by 1500 (3mp), so keeping the same aspect ration you could print them at at about 15" by 11.5".

I suspect that the photos will look a little rough at that size as there's not quite enough detail in them, but the only way to be sure is to try it.

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