• Type of flash: Ring Lite, twin circular flashes tubes, and separate Controller Unit.
• Standard Power Source: 4 AA batteries in Controller (Alkaline, NiCd, Lithium and Ni-MH type AAs are OK)
• Optional Power Source: External battery packs Compact Battery Pack CP-E2, Transistor Pack E.
• Control in E-TTL Mode: FP sync, FE Lock, Flash +/- compensation, Flash Exposure Bracketing.
• Control in Manual Mode: Flash +/- compensation, Flash Exposure Bracketing.
• Ratio Control in Manual: L:R tubes (A:B) in full steps over 1/1 ~ 1/64 range, full steps
• Setting Method: LCD panel on Controller Unit (illuminated), similar to 550EX Speedlite
• Custom Functions: Seven on the MR-14EX (in addition to any in camera), set on flash LCD.
• Modeling Flash:
  • (1) One-second burst at 70Hz in E-TTL or M flash mode, showing ratios
  • (2) With CF 4-1, uniform one second burst at 70Hz, works in TTL mode.

This new Ring Lite for close-up and 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 cameras. Circular twin flash tubes can fire at even power, or varied between them over a six-stop range, and one or more 550EX Speedlites can be used as wireless slaves along with the MR-14EX. The controller unit now has an illuminated full-info LCD panel and its accepts optional hi-capacity battery packs.