3:2 ratio

[mmartinfan]

OK I know I will get slammed for this post. But what exactly is this 3:2 aspect ratio for printing??? I sent a couple of shots in and well they came back cut off :cry: :cry: :cry: So I had to go up one size and get a 8 X 12 to get the full photo. I have Photoshop 7.0 for my processing...... And I have a 10D with several lens for my main camera.

[Harry Settle]

3x2, 4x6, 8x12 etc. . . Most allow a little room around the edges in order to crop for the popular 8x10 in post.

[Scottes]

Yeah, it is kind of irritating, ain't it?

4x6 = 1:1.5
5x7 = 1:1.4
8x10 = 1:1.25

You have to crop and lose stuff on the edges. I hate when I have a GREAT image but can't afford to crop it to an 8x10 aspect ratio....

[Jesper]

OK I know I will get slammed for this post. But what exactly is this 3:2 aspect ratio for printing??? I sent a couple of shots in and well they came back cut off :cry: :cry: :cry: So I had to go up one size and get a 8 X 12 to get the full photo. I have Photoshop 7.0 for my processing...... And I have a 10D with several lens for my main camera.

The width-vs-height ratio of your photos is 3:2. The long side is 3/2 = 1.5 times as long as the short side. So to have the photo printed without anything cut off, you must print it on a piece of paper that has the same ratio. If the paper has another width-vs-height ratio, a part of the image has to be cut off. You can't fit a square peg in a round hole.....

[mmartinfan]

ok so what size does the photo have to be in photoshop for it to fit on a say 8x10 without being cut off.

[Jesper]

ok so what size does the photo have to be in photoshop for it to fit on a say 8x10 without being cut off.

The width-to-height ratio of an 8x10 inch print is 10/8 = 4/3 = 1.25.
Different from the 3/2 = 1.5 that your 10D produces.

In other words, the formats are not the same. One is rectangular and the other is slightly more rectangular, simple mathematics. You cannot fit a rectangle with a certain ratio to a rectangle with a different ratio without distorting or cutting of something from the first rectangle.

The only way you can print your photo at 8x10 is by cutting part of it off, so that the resulting image has a ratio of 4:3 = 1.25.

Note that the width-to-height ratio of your 10D photos is the same as standard 35mm film - i.e. it's not some strange format unique to the 10D.

[MagnusH]

[
The width-to-height ratio of an 8x10 inch print is 10/8 = 4/3 = 1.25.


10/8 = 1.25, 4/3 = 1.33

The photoshop canvas for a 10 x 8 in photoshop would be 2560 x 2048 pixels for a 10D.

-Magnus.

[Jesper]

[
The width-to-height ratio of an 8x10 inch print is 10/8 = 4/3 = 1.25.


10/8 = 1.25, 4/3 = 1.33

The photoshop canvas for a 10 x 8 in photoshop would be 2560 x 2048 pixels for a 10D.

-Magnus.

OK, OK, small calculation mistake. My point is clear....

So for a 10 x 8 you would have to crop a border of 3072 - 2560 = 512 pixels from the image. It's not possible to print the full 3072 x 2048 pixel image at 10 x 8 size without cropping or distorting it.

[DAMphyne]

For full image, print 10x6.6
That should work for you.

[JoeTampa]

For full image, print 10x6.6
That should work for you.


I often crop to that, but use the extra space along the sides as a border for text if appropriate. For example, a model's name, or my own name (depending on the usage). If it's a cityscape, I might put the name of the city. Oftentimes it makes the print look more "poster-like", and doesn't require me to crop.