 "Canon MR-14EX II Macro Ring Lite - ring-type (macro) flash" Flashes & Accessories CDW.com " Canon flash 9389B002 Lights
"The Macro Ring Lite MR-14EX II is ideal for EOS quality close-up photography when used in conjunction with one of Canon's EF macro lenses. Redesigned as a perfect complement to contemporary digital SLR setups, it is the most advanced macro flash Canon has ever produced. Sophisticated white LED focusing lamps and two forms of modeling lights make for easy and accurate previewing of lighting effects. Infinitely adjustable in any lighting condition with its illuminated dot-matrix LCD, the Macro Ring Lite MR-14EX II has 12 custom functions and supports E-TTL wireless autoflash when linked with one or more Speedlite 600EX-RT flashes. All this in a refined, compact design with shorter recycling times than its predecessor makes the Macro Ring Lite MR-14EX II a reliable, customizable choice." 
 "Canon BG-E11 - battery grip" " Canon grip 5261B001 Digital Camera Accessories CDW.com
"The Canon BG-E11 battery grip for 5D Mark III Camera is an optional battery grip with improved ergonomics designed specifically for the Canon EOS 5D Mark III. It allows users to load a choice of one, or two LP-E6 battery packs. With two packs, the already-impressive battery life is doubled, compared to using a single LP-E6 pack in-camera. This is especially useful when taking advantage of the camera's movie mode or Live View mode - operating modes that use more power.The BG-E11 also provides full vertical shooting controls, which can be independently turned on or off as the photographer needs to enhance camera handling, especially for shooting vertical pictures. It has a large number of operating controls as well: shutter button, Main Dial, multi-controller, AF point selection button, AE lock/FE lock button, AF start button, and multi-function button." 