Eheirereoee – Canon EOS 3000 N User Manual

Page 68

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EHeirereoee

This is the range where acceptable focus can be achieved in front of and

behind the point of optinnum focus. The smaller the aperture (the larger the

f-number), the deeper the depth of field. And the larger the aperture (the

smaller the f-number), the shallower the depth of field.

The depth of field is affected as described below:

(1) A smaller aperture (a larger f-number) increases the depth of field.
(2) A longer distance between the camera and subject increases the depth

of field.

(3) When subject distance remains the same, a lens with a shorter focal

length increases the depth of field.

(4) The depth of field behind the point of optimum focus is longer than the

depth of field in front of the point of optimum focus.

■Depth of field

Point of optimum focus

1 2

Aperture set to f/2.

w '

Aperture set to f/22.