The Canon Speedlite 430EX improves on many specifications of its predecessor, the 420EX, and includes new features to maximize digital image quality when using a flash. The fully swiveling bounce head zooms automatically over a range of 24mm-105mm. Its Wireless E-TTL II compatibility permits it to function as a slave unit, triggered by a 580EX, ST-E2, or MR-14EX. Any number of 430EX and 550EX Speedlites can be combined as slave units for creative effects.

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