APRIL 13, 2015 – Kenko Tokina USA, Inc. is pleased to announce the specialized Tokina Cinema Hydrophilic filters for broadcast and cinema use. Tokina Cinema Hydrophilic filters have a coating layer that does not allow water to bead up like traditional filter coatings. If water cannot bead it simply flows evenly off the filter surface making for clear viewing and recording even in a steady rain.
Water-drops on glass are formed by surface tension and adhesion. Once the weight of the water is sufficient to overcome the strength of these two forces the water beings to flow. This can be seen every time water drops first “stick to” and then cascade down a window when it rains.
The Tokina Cinema Hydrophilic coating does not allow surface adhesion so water drops cannot form. The coating Tokina Cinema Hydrophilic filters permanent and does not ever need to be reapplied, unlike over-the counter products that make a similar claim. The filter coating is “recharged” by UV light making it ideal for stationary weather cameras or other cameras that are being exposed to sunlight for several hours a day.*
Tokina Cinema Hydrophilic filters come in standard broadcast sizes from 77MM to 127MM as well as square and rectangular.