This Canon Macro Ring Lite MR-14EX Flash for close-up and macro shooting is loaded with features and capabilities. With Canon's E-TTL II, it takes full advantage of the flash performance of the EOS DSLRs. Circular twin flash tubes can fire at even power, or varied between them over a six-stop range, and one or more 580EX II/430EX Speedlites can be used as wireless slaves along with the MR-14EX. The controller unit has an illuminated full-info LCD panel and its accepts optional hi-capacity battery packs.
Ringlight Flash
Canon Macro Twin Lite MT-24EX Flash User's Manual Guide (Owners Instruction)
The Canon Macro Twin Lite MT-24EX flash gives serious close-up, nature, and macro enthusiasts a different option in macro lighting - a directional quality of light, as opposed to the rather Flat character of the traditional ring lite. Two separate flash heads can be swiveled around the lens, can be aimed separately, and even removed from their holder and mounted off-camera.