Ukuran cetak photo

ukuran standar foto resolusinya pakai 300dpi
    3R = 8,89 x 12,7 cm = 3,5 x 5 inchi
    4R = 10,16 x 15,24 cm = 4 x 6 inchi
    5R = 12,7 x 17,78 cm = 5 x 7 inchi
    8R = 20,32 x 25,4 cm = 8 x 10 inchi
    10R = 25,4 x 30,48 cm = 10 x 12 inchi
    12R = 30,48 x 39,37 cm = 12 x 15,5 inchi
    16R = 40,64 x 50,8 cm = 16 x 20 inchi
    20R = 50,8 x 60,96 cm = 20 x 24 inchi
    24R = 60,96 x 80 cm = 24 x 31,5 inchi
    30R = 75 x 100 cm = 30 x 40 inchi