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Depth-of-field Scale
The depth-of-field scale indicates the range of
Daoth-of-field 2 . 3
m
,*3m
subjects which will be in sharp focus on the
F a
50rnm
Focused at 3 m
w
film. This range will vary with the following
factors: The depth-of-field will be deeper the
smaller the
lens aperture, the further the
distance of the subject, andlor the shorter the
For example, if the lens is 50mm and the subject
lens focal length. The depth.of.field
will be
has been focused at
a
distance of 3m, with an
shallower the larger the lens aperture, the nearer
F 8 aperture, the depth.of-field would be from
the distance of the subject, and/or the longer
approximately 2.3m to 4.3m
a s
indicated
on
the lens focal length.
both sides of the distance index.
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