The
photographer
can
judge
the subject's
brightness
level
and decide
where'jn the film's latitude the tones
should be
reproduced.
In
the scene
show4 in
photograph
A-3, the
subject
contrast
is 1.5
stops,
'a
3:
1
ratio.
The darkest tones
were
the shadows
in the facq and the
lightest
tones
in the
white
clothes.
When the
photo
was
exposed
using an
average
meter reading, the
white
clothes
became a light
gray
and the
face was a
slightly
darke.r
gray,
as shown
in
A-1. When
exposed
using a shadow-weighted
reading,
the face was
reproduced very darkly, as shown
in A-2.
Since the most
important
areas
in the scene are
white
or very light tones,
it is
clear
that a highlight-weighted
reading should be used to
give
added
detail to the face
without loss of detail
in
the
white
dress,
as shown
in
photo
A-3.
In
photograph
B, the
subject
contrast
was
approx.
4
stops,
16:1. The scene was exposed
with a
shadow-
weighted reading
to
retain
tonal
detailof
the clothes.
By
metering the face, it was determined
that it would
appear lighter
in
the final
results.
The Flash Meter IV
will fix
the exoosure
value on the
digital display derived
from an incident or
reflected light
measurement.
Afier
taking
a measurement, additional
areas can be
measured
to determine
the tonal
relation-
ship between
different
parts
of the
picture.
These mea-
surements can be comoared on
the contrast scale.
For
example,
if
the
face in
photo
A-3 is to be a
midtone
density,
meter the
face and
press
the
A key was
pressed
to lock the
reading on the display.
Then the clothing
and
highlights can
be metered and
compared
with
this
reference
point
to determine
how brightly they
will
reproduce in
relation to the face.
Meter the face,
monitor the clothes.
t
Exposure:
fl11 +114.1/60
sec
=#a
':Eh
":-"
(Ihis
example
shows
that the
photograph
will be slightly
underexposed
compared
to
photograph
A-3)
A-2 Shadow-wei
ghted
exposure
Exoosure: tl22+112.
1/60 sec.
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