常用照片尺寸資訊 - 對應解析度

Size (in.)	Size (mm)	300ppi (pixels/in.)	Aspect Rratio		Note
4 × 6	102 × 152	1200 × 1800	3:2 (1.5)	1.5	135(35mm)、FF、APS-C
4½ × 6	114 × 152	1350 × 1800	4:3 (1.33)	1.33	4/3 System & M43 System
5 × 7	127 × 178	1500 × 2100	7:5 (1.4)	1.4
6 × 8	152 × 203	1800 × 2400	4:3 (1.33)	1.33
8 × 10	203 × 254	2400 × 3000	5:4 (1.25)	1.25
8 × 12	203 × 305	2400 × 3600	3:2 (1.5)	1.5	Closest approximation to A4
10 × 12	254 × 305	3000 × 3600	6:5 (1.2)	1.2
10 × 15	254 × 381	3000 × 4500	3:2 (1.5)	1.5
11 × 14	279 × 356	3300 × 4200	14:11 (1.27)	1.27
11 × 17	279 × 432	3300 × 5100	17:11 (1.55)	1.55
12 × 15	305 × 381	3600 × 4500	5:4 (1.25)	1.25
12 × 18	305 × 457	3600 × 5400	3:2 (1.5)	1.5