For sale is an excellent condition Canon 580ex ii. Works perfectly, only used a few times. Some light spotting on the plastic (see photos). It may be normal as it came like that, but thought I'd point it out. Selling because I downgraded to a much smaller flash, otherwise I would keep this! 

Comes with original box, instructions, soft holding pouch.

Also included is a Visual Echoes FX3 Better Beamer ($35 @ B&H) which extends the power of the flash, especially helpful for bird photography.

Finally, I'm including a recently purchased flash diffuser ($17 @ B&H).