Kaiser Filters

Conversion filters are color correction
filters, which convert light of a certain
color temperature to another color temperature.
Digital photography does not
need them, but films are balanced for a
specific color temperature. A KB 12 filter
is used when you shoot on daylight film
under artificial light conditions at approximately
3000 Kelvin. Using an artificial
light film under daylight conditions requires
a KR 12 filter.
Polarizing filters can enhance a blue
sky, suppress unwanted glare and
improve color saturation in general. In
addition reflections on glass, water,
shiny surfaces, e.g. on cars or on sunlit
leaves, are eliminated. Polarizing filters
can also reduce very high contrasts
which can be an advantage with digital
cameras with a low dynamic range.
Linear and circular polarizing filters
have the same effects, their difference
lies in camera compatibility. SLR cameras
with split-beam metering or autofocus
will normally require a circular polarizing
filter whereas compact cameras -
analog and most fo the digitals - will get
along with a linear polarizing filter. If you
are not sure what to use, a circular
polarizer will keep you on the safe side.
Camera Accessories
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