This new Ringlight for macro shooting is loaded with features and capabilities. Now with Canon's E-TTL, it takes full advantage of the flash performance of the EOS-1V, EOS-3, and other E-TTL supported cameras. Twin circular flash tubes fire at even power, or can be varied over a six-stop range. One or more 580EX, 550EX, 430EX, or 420EX Speedlites can be used as wireless slaves along with the MR-14EX. The controller unit has an illuminated, informative LCD panel. Accepts optional hi-capacity battery packs.

Twin tubes designed for close-up photography with EF Macro lenses; Flash tubes can fire together or independently

Ratio control in manual mode: 1/1 ~ 1/64 range in 7 full steps

Supports E-TTL wireless autoflash in conjunction with one or more 580EX, 550EX, 430EX, or 420EX flashes

Attaches directly to EF 50mm f/2.5 Compact Macro, EF 100mm f/2.8 Macro (both versions), and MP-E 65mm Macrophoto Lenses [without filters attached] (can also be used with EF 180mm f/3.5L Macro USM via Macrolite Adapter 72C)
Can be adapted to other popular filter sizes with appropriate Macrolite Adapters; 52mm, 58mm & 72mm

Incandescent focusing lamps and two forms of modelling flash permit preview of lighting effects

Illuminated LCD panel for easy flash settings in any lighting condition

Seven Custom Functions set on the flash LCD

Compatible with AA alkaline, lithium, Ni-Cd and Ni-MH batteries

Accepts Canon external battery packs (compact battery pack CP-E2 & transistor pack E)

Note: Compatible with PowerShot G series and Pro 1 cameras by use of apropriate Lens Adapter and Macrolite Adapter.