Specification 

• YongNuo YN-14EX TTL Macro Ring
  Lite Flash Light for Canon EOS DLSR Camera
• The YN 14-ex is a great ring flash. It is designed for use with Canon cameras.
  It is TTL capable as well as manual control.
  You can control the light output as a whole or one side separate
  from the other to create different effects with the light.
  The ring flash is great for macro photography as well as beauty portraits.
  You will not be disappointed in this one, that is for sure!
• Guide Number: 14(ISO 100, 105mm)
  Circuit Design: Insulated Gate Bipolar Transistor(IGBT)
  Flash Mode: M, TTL
  Type: Automatic Annular flash for macro shots
  Flash Ratio Control: With the percision of 1/2 EV within the range of 8:1-1:1-1:8
  Flash Coverage Vertical Angle: 80 degree
  Flash Coverage Horizontal Angle: 80 degree
  Power Supply: 4 x AA Battery or AA Nickelmetal Hydride Battery (not included)
  Lighting Times: 200 ~ 2500 times
  Recycle Time: Approx 3 sec
  Color Temperature: 5600k
  Flash Control: 7 levels of output control (1/64 ~ 1/1), 19 levels of fine tuning
  External Interface: Hot shoe, PC port and external charging port
  Dimensions: (6.02 x 2.91 x 2.20)" / (15.3 x 7.4 x 5.6) cm(L x W x H)
  Weight: 760 g / 26.81 oz
  Compatible with: Canon Camera