Makers of the world's most advanced Li-Ion powered monolights and head/pack combinations, allowing you to synchronize your camera at shutter speeds of up to 1/8000th of a second. World's first and only HotSync solution for medium format cameras, enabling 645Z and 645D owners to synchronize to our strobes at up to 1/4000th of a second, and without the need for leaf shutter lenses. HotSync is available for select Nikon, Canon, Pentax, and Sony cameras. General distribution, sales, and Service in North America.