Speedlite 550EX

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The back (left) and front (right) views of the flash with the flash head pointed upward.
The back (left) and front (right) views of the flash with the flash head pointed upward.

The Speedlite 550EX is a flash made by Canon Inc. for use with their EOS line of cameras. Until the release of the Speedlite 580EX in late 2004, the 550EX was Canon's top-of-the-line flash.

The 550EX flash features an infrared controller that enables wireless control of other flashes similar to the Speedlite Transmitter ST-E2.

The flash head swivels in two directions. The image shows the flash head in a vertical position.

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