Canon MR-14EX II Macro Ring Lite.
The MR-14EX II Macro Ring Lite Flash from Canon is designed for use with Canon macro lenses for close-up photography. With a guide number 34' at ISO 100 per side, its twin tube design allows each flash tube to fire independently, or simultaneously to provide a combined guide number of 46' at ISO 100. White LED focusing lamps and two types of modeling lights allow for accurate previewing of the light's effect.
Highlights:
Compatible with Canon E-TTL / E-TTL II
Twin-Tube Design & 12 Custom Functions
Guide Number: 45.9' at ISO 100
Coverage: 80° Vertical & Horizontal
LED Focusing Lamps
Wireless Master TTL Functionality
Recycle Time: 0.1-5.5 Seconds
High-Speed & 2nd Curtain Sync
Runs on 4 AA Batteries
Attaches to Select Canon Macro Lenses