ROLLEIFLEX SL35 - Page 44

The rlght Rollel fllter
For
black-and-
white
and colour
lllm
Characteristics
and
effect
Use
in daylight
for
Use
in artificial
light for
UV-filter
Absorbs ultra-violet
Shots
in high mountains
(above
6500 feet) or
by
the
seaside
(especially
by midday sun)
Scientific
and
technical
photography
(f
luorescence
phenomena)
Conversion
filter
R
1.5
(Skylight
filter)
Changes
the colour
temperature of
the light
transmitted
(by
1.5
decamired),
also
full
UV
f ilter effect
Correcting
blue
casts
in
distant
views on
cloudless
days
with high
sun, Alpine
and seaside
photography (esp.
on
reversal colour
film)
Electronic flash
exposures
with units of
too high a colour
temperature
Neutral
density
filter
Uniformly
holds
back
light of all
colours,
reduces
light
intensity
to
25
%
(ND
-
2) or
12.5o/o
(ND
-
3) respectively
Extremely
bright
subjects
on
high-speed
or
ultra-speed
film
Exposures
(including
flash shots)
at
large
apertures
for limited
depth of
field
on
high-
speed
or ultra-speed
film
Polarising
filter
Absorbs
polarised
light
from
the sky, subdues
or
extinguishes
reflections
from non-metallic(!)
surfaces
;
eflect reduced
with shorter
focal lengths
Landscapes:
blue sky
becomes
darker
without
change
in
other
colours,
water
surfaces
become
transparent
Near shots of
glass,
china,
pictures
and other
objects
displayed
behind
glass;
shop
windows,
display
cases etc.
44
www.orphancameras.com