Sekonic L-398 - Page 13

N
ote 3:
In situations with
direct or top
lighting
(sun
near zenith),
the
Lumisphere will detect
ref
lected
light
f
rom the snow
surface.
Some
means of blocking
the
light
f
rom
below
becomes
required in this
case.
In
typical
cases of
back and
side
lighting,
although the surface
of
a 3-dimensional
subject
facing
the
camera
becomes dark,
a
portion
is
usually
strongly
lighted.
Even
though
standard measurement
with
the Lumisphere
can
bring out detail
of
the darker
portions,
on
occasion,
the
brighter
portions
can become overexposed
and difficult
to
see.
In
some instances,
this
effect
can
even
be
enhanced
to
produce
a special
photographic
composition,
but
for
a
generally
more
attractive result,
perform
as
follows.
First use the
Lumisphere
and measure
by standard method,
then determine exposure f rom
the
mean value
(same
technique
as
used
for
Observatorial Scenes).
6.
Silhouette
Photography
In
situations such
as a silhouette of
a
person,
tree or
bridge in
the
foreground
against the
setting sun
and brilliantly shining
sky
as
background, remove
slide
and
point
Lumisphere
toward the
setting
sun to measure
(as
with
Ref lected
Light
Measurement).
Then
without
inserting High
slide,
set to
H
mark. In
this manner,
the
foreground
becomes silhouetted
by
underexposing
the
light
source.
Snow
surface
b. In some
cases,
good
results
can
be
obtained with
ref
lected light
measurement under
back
light
conditions,
cloudy
snow
scenes
where
glare
is less
and snow scenes under direct
lighting. Install
Lumigrid
and
point
light
sensor slightly downward
to
block
light
from
the sky, then
from
camera
position,
aim
toward subject
and
measure.
Be
sure to set the
H
mark-at
this time
and do
not
employ
slides.
5. Scenes
with Side
or
Back
Lighting
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