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high frequency
The Smart Videohub 20 x 20 from Blackmagic Design is a mixed format router with 20 6G-SDI inputs and 20 6G-SDI outputs for routing any combination of SD
18v dc and 12v ac power
Highly directional
Tiffen 55mm Circular Polarizing Filter RF-Link high frequencyLight 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.
