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DPChallenge Forums >> Photography Discussion >> Photo paper size versus camera image size question
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01/28/2008 06:57:34 AM · #1
Basically the photos from my camera come out at 9.5in X 14.3in (241mm x 363mm)

the photoplaces around here sell paper and print on 8 x 10in

is there something i can do about this?
I end up chopping a good part of my photo, or adding some black border around 2 sides.

Is that just what you all do?

My wife have a lumix and they come out 8 x 10
01/28/2008 08:17:55 AM · #2
Both 35mm film as well as dSLR cameras have a native aspect ratio of 2:3. That's exactly what you are getting. That means that photos naturally fit the 4x6, 8x12, 10x15, 12x18, 16x24, 20x30 sizes (2:3 multiplied by 2, 4, 5, 6, 8 and 10 respectively).

An 8x10 is a 4:5 ratio, which is more square. Compare that to the native 8x12 and you can see that 2 inches must be chopped off somewhere.

It's best if you keep your expected output in mind as you take the picture, so that you don't end up chopping Uncle Harry out of the picture (unless nobody liked him anyway). Otherwise you either have to play games with Photoshop's Transform command, or else move up to an 8x12" print size.

01/28/2008 09:26:46 AM · #3
Originally posted by dwterry:

Both 35mm film as well as dSLR cameras have a native aspect ratio of 2:3. That's exactly what you are getting. That means that photos naturally fit the 4x6, 8x12, 10x15, 12x18, 16x24, 20x30 sizes (2:3 multiplied by 2, 4, 5, 6, 8 and 10 respectively).

An 8x10 is a 4:5 ratio, which is more square. Compare that to the native 8x12 and you can see that 2 inches must be chopped off somewhere.

It's best if you keep your expected output in mind as you take the picture, so that you don't end up chopping Uncle Harry out of the picture (unless nobody liked him anyway). Otherwise you either have to play games with Photoshop's Transform command, or else move up to an 8x12" print size.


Thanks for the explanation, that explained it perfectly.

Ill try and explain to the photo guy if he can print on a 8x12, but living in Japan, requests for change are not always easy to acomplish! ;)
01/28/2008 09:58:52 AM · #4
The easiest way to deal with this without cropping your image is to size it to 10 inches on the long dimension and then add a black border above and below the image in photoshop (or whatever editor you use) to bring the short dimension up to 8 inches with border. Save that as a jpg and take it to the printer; you won't have to explain a thing :-)

R.
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