Canon Macro Ring Lite MR14EXII Flash

Enjoy accurate auto white balance: Macro Ring Lite MR-14EX II seamlessly transmits colour temperature data to your EOS camera for accurate auto white balance.
Dual flash tubes provide options on the go: The choice of two flash tubes allow you to create uniform shadowless lighting or use shadows to emphasise texture.
Always experience a powerful performance: Get the best results up close with Macro Ring Lite MR-14EX II's guide number 14 (ISO100) allowing small apertures for extended depth of field.
Precision and accuracy are guaranteed: Your images will be enhanced with colour temperature data transmitted to your EOS camera for accurate auto white balance.

Flash
Guide Number: 45.93' / 14 m at ISO 100
Effective Range: Up to 16.4' / 5 m at f/2.8
Angle of Coverage: 80° Horizontal, 80° Vertical
Recycle Time: Approx. 0.1 to 5.5 Seconds
Exposure Control: Canon E-TTL / E-TTL II
Power Range: 1/1 to 1/128
Secondary Illumination: None
Wireless
Wireless Operation: Optical Pulse (TTL/Manual), Up to 16.4' / 5 m (Master)
Wireless Channels: 4
Wireless Groups: 3
Power
Internal Power: 4 x AA
General
Mount: Shoe Mount
Lens Compatibility: 52mm/58mm/67mm/72mm Filter Threads (via Optional Adapter Ring)
Display: LCD
Dimensions (W x H x D): 2.7 x 4.7 x 2.8" / 69.6 x 118.8 x 71.4 mm (Controller), 5.1 x 4.4 x 1.0" / 129.6 x 112.1 x 25.3 mm (Ring)
Weight: 1 lb / 453.59 g (without Batteries)
Package Weight: 2.08 lb
Box Dimensions (LxWxH): 8.8 x 6.7 x 6.4"