Click the Canon Digital Learning Center (CDLC) link below to access the in-depth article on the EOS System:
Speedlite Tip Series, Part 2: Beyond the Instruction Manual
Note: If the link does not respond, paste this URL into the address bar of your browser:
http:/?/?www.?learn.?usa.?canon.?com/?resources/?articles/?2011/?speedlite_?tip_?pt2_?article.?shtml
