DPanswer Radio slaves Wireless triggers to fire flashes or the camera's shutter by Gisle Hannemyr This article is an introduction for photographers looking for radio triggers for flash and digital cameras. A lot of different triggers exists, and this article tries to gives an overview for the entire field, with links to other articles that discusses specific radio trigger systems. If you also are interested in optical triggers, please see this article. While optical triggers may be fine for wireless control of off-camera flash indoors, nothing beats radio for range and reliability outdoors. Radio Frequencies Several radio bands are made available for more or less unregulated use in different geographical areas this includes the bands used for RKE (Remote Keyless entry, i.e. garage openers) in North America, and the ISM (Industrial/Scientific/Medical) bands. Equipment designed to operate in these bands is designed to be tolerant for interference by other equipment operating at the same frequency. Types of triggers
MultiMAX Transceiver New MultiMAX Features available via the PocketWizard Utility for all USB-enabled MultiMAX radios. Long Range Mode for remote camera triggering doubles the usable distance between two MultiMAX radios. This was found particularly useful by photographers shooting in sports arenas, photographing wildlife and using it for other challenging remote camera applications such as aerial photography. Close Range Mode reduces the transmit power of the MultiMAX radio when it is in Transmit mode. The Noise Sniffer and Signal Strength Indicator are new tools for troubleshooting RF noise. The Signal Strength Indicator (Receive Only) performs two functions: • If a MultiMAX radio has NOT been triggered, it acts as a Noise Meter and indicates steady noise in the area This is useful to gain a quick view of the local noise level in the area you intend to shoot in so you can pick a channel with less interfering noise. MultiMAX TRANSCEIVER ADVANCED COMMUNITION FEATURES: Thirty-two, 16-bit channels Relay Mode Size