A popular question I hear among photographers is "How can I print an 8x10 without it being cropped?! I am trying to order a print and it's cutting people off my photo, help!!!"In order to answer this question, a thorough explanation must be made on crop and aspect ratios. What is an aspect ratio? In simple definition, it's the ratio of the width and height of an image, video, or screen. Have you ever noticed the blank screen around the movie you watched last? That just shows that the aspect ratio of the screen and the aspect ratio of the film are different, so the black compensates for the extra space without having to cut off parts of the film. This is just as true with photography. But with photography, instead of adding black around your photo to compensate for the various aspect ratios, we get into cropping to suit the image to the size we want.
When you take a photo with your DSLR, the standard crop of your image is a 3:2 ratio. When you go to print a different ratio other than a 3:2, then you are going to get anywhere from minimal to extreme cropping depending on the size you are printing.