UV Protection Filters
Haze(UV) filters are wise initial investments. They help protect your valuable
investment from dust, moisture and scratches, which can lead to costly repairs.
If desired they can be left on the lens at all times for protection. Haze
filters provide additional benefits of correction for Ultraviolet(UV) light
which can register on film and videotape as a bluish cast and can obscure
distant details. Ultraviolet filters allow you to correct for the UV effect to
varying degrees.
Circular Polarizers
Light rays which are reflected become polarized. Polarizing filters are used to
select which light rays enter your camera lens. They can remove unwanted
reflections from non-metallic surfaces such as water or glass and also saturate
colors providing better contrast. The effect can be seen through the viewfinder
and changed by rotating the filter. The filter factor varies according to how
the filter is rotated and its orientation to the sun. Filter factor is between
2.3 and 2.8 (approx. +1.3 stops).
Circular polarizers are specifically designed for use with auto-focus SLR
cameras (They will also work on manual systems and video cameras without
problems).
Warming Filters
Warming Filter improves skin tones and is ideal for portraits taken on a cloudy
day or outdoors in shade on a sunny day. It also absorbs blue cast often caused
by electronic flash and adds warmth to pale washed-out flesh tones.