PhotoBert Photo CheatSheet for the Canon 580EX II SpeedLight.
Nobody can remember all of the features, modes and the "how to" instructions so here's an "easy to take with you" quick reference that is invaluable in the field.  This CheatSheet is full of useful information on how to use the various features of this flash.   Topics covered include:   Battery information   Auto Power Off/Standby   Quick Flash   Flash usage with different Camera Exposure Modes   Flash Exposure Compensation   Flash Modes   Equal Subject and Background compensation   Subject Compensation only   Background Compensation only   Flash Exposure Value Locking   Flash Exposure Bracketing (FEB)   FP High Speed Sync   Bounce/Turn Flash   Catch-light Panel   Guide Numbers   LCD Reference   Zoom Head Positioning   Flash coverage for Digital Image Sizes   2nd Curtain (Rear Curtain) Sync   Close-Up Flash   Wireless Flash - Master/Slave(s)   Manual Flash Mode   Stroboscopic Flash Mode   Custom Settings Reference   Custom Settings Cross-Reference  All this on a "take it with you" durable card.