Canon will introduce a new flagship model in its EX Speedlite range: the Canon Speedlite 580EX. Now Canon's most powerful flash unit, the Speedlite 580EX has a guide number of 58 (m/ISO 100 at 105mm) ...

Further development of Canon's flagship Speedlite has led to the production of the 580 EX II. This is the premier Speedlite for all photographers, including professionals. Newly designed to match with ...

I took this picture with a Canon 7D on a tripod, a remote control to fire the camera and an external 580ex ii flash that I fired 3 times in my hand… one thing i notice when i saw the picture on the ...