Square 1:1
Digital SLR 3:2
Panorama 21:9
24x24 x3
24x36 x3
24x56 x3
30x30 x3
30x46 x3
36x36 x3
36x54 x3
40x40 x3
40x60 x3
12x12 x3
12x18 x3
12x28 x3
16x16 x3
16x24 x3
16x36 x3
20x20 x3
20x30 x3
20x46 x3