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COMPENSATION OF
EXPOSURE
Due to
special
lighting
conditions, or
in situations
of
high
contrast such as occur
in repro-copying,
it
may not be desirable
to
take the picture
as is.
The
amount of exposure the film receives is
determined
by a combination of
the lens
aperture and
the
shutter
speed.
Since the two
are
interrelated, different combina·
tions will
give the same amount of exposure.
The best
combination
depends
on
the
results
desired
.
Use fast
shutter speeds
to
freeze
motion or
slow
ones to
create
deliberate
blur. Sma
ll
apertures give greater
depth of
field
;
large
ones
let
the subject stand
out
against an
out-of-focus
background.
) ust
as with automatic
operation,
care
must be taken to
be
sure the ASA/f-stop/shutter
speed combinations
are
within the
EV
range of
the meter
.
To
compensate exposures,
the
following
three
methods
are
used
:
1.
Compensation by manual exposure control
{M
anual
override)
I
f
you
want deliberate
underexposure or
over-
44
exposure,
reset the
green
needle to
a
numb
er
higher
or lower
than the number indicated by
the
black needl
e
in
the shutter-speed
scale.
2. Resetting the ASA dial temporarily
The
picture
is taken after resetting the ASA dial
by the amount of compensation, with other
factors
left unchanged.
For instance,
when a film
of ASA 100 is used: And
a
compe
nsation
by one
stop
increase is desired,
adjust
the
index to
50.
And
a compensation
by one
and
1/3
stops
decrease is
desired, adjust
the
index to the dot
following
200.
Remember to return the ASA dial to its
origina
l
position upon
comp letion of
picture-taking
under the
adjusted setting.
3.
Using
the exposure
memory
lock
When there
are severe
brightness differences
be-
tween the
subject and
the background,
you
will
often obta
in
better results using the ELW's
center-weighted
me-
tering
system
and
memory lock,
which
is integrated into the
se lf-t
im
er.
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