Canon EOS Flashes

The Speedlite 430EX has a guide number of 43 (m/ISO 100 at 105mm), ideal for telephoto and bounce flash work. Designed with digital photographers in mind, the unit shares many Speedlite 580EX features, including autozoom control to match EOS body sensor sizes and colour temperature information transmission for white balance optimisation.
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The Speedlite 580EX II is Canon’s most powerful Speedlite. A guide number of 58 (m/ISO 100 at 105mm) gives the unit an abundance of capacity for many shooting situations, including telephoto work and bounce flash applications. An adjustable angle of coverage is suitable for use with wide lenses to 14mm. It acts as a wireless master to compatible slave units, or as a slave to other Speedlite transmitters.
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These last upto 7x longer than normal Alkaline batteries
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'Gadget Show' winners as best value alkaline batteries
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