Depth-of-field scale – Canon Model 7S User Manual
Page 65
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Depth-of-field Scale
The
depth-of-field
scale
indicates
the
range
of
subjects which will be in sharp focus on the film.
This range will very with the following factors:
The depth-of-field will be deeper the smaller the
lens aperture, the shorter the lens focal length,
and/or the further the distance of the subject.
The depth-of-field will be shallower the larger the
lens aperture, the longer the lens focal length,
and/or the nearer the distance of the subject.
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