It's an easy to take with you quick reference that is invaluable in the field. This CheatSheet is printed on double-sided 8 1/2 x 11 brochure stock at high resolution and is folded in thirds so it's a convenient size (4 1/2" x 8 1/2") to put in your camera bag. 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 camera. Covered topics include: Battery Information Flash Exposure Lock (FEL) Guide Number reference Auto Power Off Settings High-Speed Sync Wireless Radio/Optical Quick Flash 2nd (Rear) Curtain Sync Radio Transmission Wireless Flash Lock Button Head Bounce/Close-Up/Turn Optical Transmission Wireless Flash Camera/Flash Exposure Modes Zoom Head Position Fully Automatic Wireless Flash Flash Coverage / Sensor Size Wide Panel Use Flash Ratio AF-Assist Beam Modeling Flash Custom Settings Flash Exposure Compensation Reset to Default Personal Settings Flash Exposure Bracketing (FEB) Color Filters LCD Reference (ETTL) Manual Flash Output External Metering