Leica provides a wide
array of ultraviolet and circular polarizing filers using the finest
materials available for their series of reflex and rangefinder lenses.
Film, as well as video, often exhibits a greater sensitivity to
what is to us invisible, ultraviolet light. This is most often outdoors,
especially at high altitudes, where the UV-absorbing atmosphere
is thinner; and over long distances, such as marine scenes. It can
show up as a bluish color cast with color film, or it can cause
a low-contrast haze that diminishes details, especially when viewing
far-away objects, in either color or black-and-white. Ultraviolet
filters absorb UV light generally without affecting light in the
visible region.
Polarizer filters give you several key creative features. They
evenly increase color saturation of all colors (except black and
white), creating deep, rich scenics. They add contrast for dramatic
skies and arial shots. They eliminate the whitish glare from highly
reflected surfaces like glass and water. Polarizers are two part
lenses that rotate, allowing you to select the degree of additional
saturation, contrast and glare reduction desired.
|