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the ratio of the width to the height of an image

Common aspect ratios in still photography

  • 1:1 - some 120mm film cameras, Holga/Diana, Instagram
  • 3:2 - 35mm film (36mm x 24mm), most digital SLRs
  • 4:3 - compact cameras, four thirds and medium format (645), old polaroid prints

Common display aspect ratios

  • 3:2 - standard computer monitors and televisions
  • 16:9 - wide screen

Common print aspect ratios

  • 3:2 - 4 x 6, 8 x 12, 20 x 30cm (A4)
  • 4:3 - 4.5 x 6", 13.5 x 18cm (6D)
  • 10:7 - 3.5 x 5", 9 x 13cm
  • 7:5 - 5" x 7", 13 x 18cm
  • 5:4 - 8 x 10", 20 x 25cm
  • 14:11 - 11 x 14", 28 x 36cm
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