3:2 - 6x4, 12x8, 24x16
4:2 - 8x4, 12x6, 24x12
16:9 - 8x4, 12x6, 24x12
7:5 - 7x5, 10x7, 16x11
1:1 - 5x5, 10x10, 16x16