What Size Filter Do I Need?
To achieve a secure attachment, these filters are designed to screw onto lenses with a standard filter threading. Prior to purchase, confirm a precise fit by checking your camera's lens thread size. The size is denoted by the symbol "Φ" followed by a number (e.g., Φ82 for an 82mm lens thread). Locate this information on the front glass element, lens cap, manual, or information from the manufacturer.
Ideal for portraiture, the 77mm 812 Warming Wide-Angle Filter from Tiffen is used to improve skin tones when working in cool lighting conditions. This filter offers a greater warming effect than a skylight 1-A filter and is well-suited for use outdoors on overcast days or on sunny days when working in open shade. It can also be used to absorb the strong blue cast of an electronic flash for more balanced, lifelike skin tones.
The filter is constructed using Tiffen's ColorCore technology, which
involves lamenting the filter material between two pieces of optical
glass, grounding flat to a tolerance of 1/10,000th of an inch, and
mounting within an aluminum alloy ring.
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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Chatsworth, CA thank-you for stopping by. Please keep us in mind for all your
requirements in motion picture equipment in future.
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