Canon EF 300mm f/2.8L IS USM EF300mm F2.8L IS USM Instruction Manual - Page 14

Depth-of-Field Scale

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9. Depth-of-Field Scale 30 70 ft 10 20 m 32 32 The depth of field is the distance in front of and behind the plane of focus on the subject that appears sharp. The depth of field is indicated by the area between the depth-of-field scale lines below the distance scale. The numbers on the scale are F values. The depth-of-field scale is an approximate indicator. ENG-13

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ENG-13
9. Depth-of-Field Scale
The depth of field is the distance in front of and
behind the plane of focus on the subject that
appears sharp. The depth of field is indicated by
the area between the depth-of-field scale lines
below the distance scale. The numbers on the
scale are F values.
32
32
ft
m
70
20
30
10
The depth-of-field scale is an approximate indicator.