Linda From Maine wrote:
Look up "aspect ratio"
3:2 camera has multiples of 4x6, 8x12, 16x24 etc
4:3 camera makes 6x8, 12x16, 24x32
For a print of 5x7, 8x10, 11x14, you have two choices: crop something out, or print with a white border (which will not be evenly distributed around the edges).
Nice reply, Linda, especially on aspect ratio day. Your comment on a native aspect ratio full frame print points to the framer's ability to expose or crop the image as they please.