Gossen MetraWatt lunasix - Page 10

I
Meosurement
-
in
deroil
I
With the reflected light
method the LUNASIX
occepts
the reflected
light
from
subiects
within
o ce,rfoin
ongle. Thus ihe meosurement
depends not
only on ihe
intensity
of the illuminotion
bui olso on ihe
colours ond the individuol
brighlness
of
the
subiecl itself.
With
identicol
illuminotion
the
pointer's
deflection
is
greoter
with
light
subiects thon
with
dork
subiects. The
exposure
meler odds
together
the different
single
detoils of light ond
converts them to lhe
overoge
volue.
lf there
ore exlreme
controsts
of
illuminoiion
ond colour,
it is
odvisoble
to meosure
the
importont
portions
of the
scene to be
photogrophed.
In
block-ond-white
photogrophy,
tor
exomple,
core
should be token
lo
ensure
odequote
detoil in the
dork
ports,
ond in colour
photogrophy
odequote
detoil in the light
poris.
Come close to
the
subiect
but not so
neor
thot
either
your
own
shodow
or ihot of the
LUNASIX
folls
on the subiect.
This
method
is
colled
the close-up meosurement.
With
ihe incident method
-
from
the
subiect
towords
the
comero
-
the LUNASIX
occepts
oll the
light folling
on
the
subiect focing
the
comero.
Here,
the colour
of the
subiect
or its
individuol
brightness is not
token into
considerotion.