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) ...

It's not just the new EOS 5D Mark III that Canon has today, the photography company has also outed a range of new accessories for the DSLR including the first wireless-enabled pro Speedlite. The ...