Data Sheet

33
for Film CameraCOLORED FILTERS
81A • 81B • 81C
Decrease color temperatures
With 81A
These are light balancing filters
used to decrease the color
temperature slightly for a
warmer (redder) tone. Corrects
the tendency toward bluish
tones. For example, the 81A
should be selected when using
tungsten type B color film
(3200ºK) with photoflood lamps
(3400ºK) These filters can be
used together.
With 81B
With 81C
Without Filter
85 • 85B • 85C
Color conversion filters
With 85
These are color conversion filters
for the use of tungsten type
color films in daylight. 85
decreases the color temperature
from 5500ºK to 3400ºK for the
use of Type A color film. 85B
decreases the color temperature
from 5500ºK to 3200ºK for the
use of Type B color film. 85C
decreases the color temperature
from 5500ºK to 3800ºK. The
effect obtained is the same as
with daylight type color film used
in daylight.
With 85B
With 85C
Without Filter
HOYA-Catalog-2012-Inter1B.qx:HOYA New Catalog-V3-THK.qx 12/09/09 19:59 Page 33