Sizes, aspect ratio

Posted under » Design on 1 June 2011

Paper sizes

A4 :

• 72 dpi (web) = 595 X 842 pixels
• 300 dpi (print) = 2480 X 3508 pixels (This is "A4" as I know it, i.e. "210mm X 297mm @ 300 dpi")
• 600 dpi (print) = 4960 X 7016 pixels

Images

• 1:1 square
• 4:3 (monitor size) eg. 800x600
• 3:2 also 4:6 CMOS size
• 16:9 wide

Video

• 720 x 576 /D1, DV, DVB, DVD, SVCD
• 352 x 288 /VCD, DVD, H.261 + H.263 (CIF)