Accessories
The Powershot G series can accept a number of photographic accessories. Filters and other threaded lens accessories can be used with an adapter tube. Adapter tubes are available from Canon or third party suppliers. Most adapter tubes have 58 mm filter threads. In addition to standard filters and close-up lenses, the adapter tube can be used to attach wide angle or telephoto converter lenses to the Powershot G series. Starting from the G7, there is a bayonet mount on the front of the camera around the lens to directly attach lenses and accessories.
Powershot G series cameras have a standard threaded socket for mounting to a monopod or tripod. This can also be used for attaching the camera to various brackets or adapters.
With the hot-shoe for external flash, the Powershot G series can accept not only compatible flash units but also various connecting cords and wireless triggers. However, the Powershot G series is sensitive to the voltage produced by certain flash units, particularly older designs. Canon recommends that the maximum trigger voltage be less than 6 volts for any flash or accessory attached to the hot-shoe.
Flash compatibility is somewhat of an issue with the Powershot G series. Canon EX flashes are compatible but all EX features may not necessarily be usable. In particular, when the Powershot G is in manual exposure mode, the external flash is also in manual mode; that is, ETTL flash control is not operable.
Read more about this topic: Canon PowerShot G
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