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Old Dec 4, 2006, 5:08 AM   #1
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Hi there. I've got an S5200/5600 and are just learning how to use it properly. My question is if I take a picture on 5M (fine) settings (the picture ends up on the PC as 2592 pixels by 1944 pixels) how much can I crop the image and have it still look sharp when printed on the stanard 5x7 print?

I'm currently taking pictures of the moon and obviously there's plenty of black background so what is the standard whereby I can crop before it wont look any good? I've kinda gathered that on 5M (fine) you could theoretically print an image of around A3 size (which is approx 11.5 inches wide) so given I only want to print an image on the standard 5x7 print I could crop it by approx 2.3 times (11.5 divided by 5). Is this logic not right?

Any feedback would be greatly appreciated.

BTW, the settings I'm using is manual mode, ISO64, F/3.2 s/640, full zoom. The pics are looking great on the pc but I want to get the cropping right before I get any printed out.
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Old Dec 4, 2006, 8:29 AM   #2
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Good question...

You could always use the try and error approach but that would be wasteful. I believe it goes this way. The rez will depend on the printing device. I'm guessing but I believe most commercial printers (fast print places) use ~150 DPI printers.

So a 5x7 would require (5x150) x (7x150)=750x1050=790K

Crop your picture to 750x1050 pixels.

If they are 300DPI printers the dimensions would be 1500x2100 for 3.15M

Ibelieve this is the methodbut if this is wrong.... someone please chime in.
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Old Dec 5, 2006, 5:24 AM   #3
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bill soper wrote:
Quote:
Good question...

You could always use the try and error approach but that would be wasteful. I believe it goes this way. The rez will depend on the printing device. I'm guessing but I believe most commercial printers (fast print places) use ~150 DPI printers.

So a 5x7 would require (5x150) x (7x150)=750x1050=790K

Crop your picture to 750x1050 pixels.

If they are 300DPI printers the dimensions would be 1500x2100 for 3.15M

Ibelieve this is the methodbut if this is wrong.... someone please chime in.
Thanks for your response Bill. I'd be interested to hear if anyone else either re-interates your view or has an alternate response.
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Old Dec 5, 2006, 10:05 AM   #4
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So would I..........
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