This Tiffen Video Essential DV Kit contains the following filters: Tiffen Circular Polarizer, Clear, Warm UV-17, and Soft Pouch.
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).
Clear Filters
A clear (colorless) filter for color as well as black and white films. Also serves as a permanent lens protector.
Warm UV-17 Filter
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.
UV-17 filters absorb approximately 97 percent of UV rays.
Tiffen's ColorCore glass is produced through a process that entails permanently laminating the filter material in between two pieces of optical glass that are ground flat to tolerances of a ten-thousandth of an inch, then mounting them in precision aluminum rings.
Filters, like all crafted optics, are susceptible not only to breakage, but to premature aging caused by environmental factors. Most filters are made up of several layers of materials consisting of glass, dyes, optical cements, chemical compounds, particles etc. Even with protective measures employed, there are many factors that can still affect the longevity of the filter: moisture (prolonged exposure to humidity), excessive heat and excessive light are the most common environmental causes that can affect the filter’s chemistry over time.
To protect your filters and keep them in great working condition for a long time (along with the rest of your camera gear) we recommend making sure to keep the filters stored in a dark, cool, and dry place when not in use. The use of filter pouches or specialized cases will also keep your filters safe from breakage when not in use. If you are in a humid environment, the addition of fresh silica gel packs or a dehumidifier in the room they are stored is also highly recommended. Protecting your filters as you would your camera lenses will ensure many years of use of your filters.
What do you recommend cleaning filters with?
Hand blower first, if it's just light dust, that usually handles it. If you need to clean further, a Kim Wipe sprayed with Tiffen/Pancro Lens Cleaner, work in a circular motion from the middle out.
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