Yongnuo YN660 Wireless GN66 2.4G Flash Speedlite for Canon Nikon Pentax Cameras

Descriptions GN66 ISO100 199mm high guide number 2 4G wireless speedlite supports M Multi mode Supports wireless master control function realize six groups of light control YN660 can be used as master control unit be equipped with six groups of independent grouping control ability realize remote control the flash mode output and focal length of YN660 YN560 IV YN560III Supports wireless slave function fully supports the YN660 YN560 IV YN560 TX RF605 RF603 II RF602 wireless transmitter One YN660 can respectively accept the signal transmitted from the YN660 YN560 IV YN560 TX RF605 RF603 II RF602 wireless transmitter with 16 channels for option when the YN660 YN560 IV and YN560 TX used as transmitter it can realize remote flash parameter adjustment Multiple flexible trigger synchronous ways YN660 can be triggered through the camera 2 4G wireless triggering S1 and S2 pre flash trigger avoidance Supports automatically save settings and custom settings Fn the parameters on the flash will automatically save when the flash turned off the users can customize setting the flash function as needed Specifications Circuit design Insulated Gate Bipolar Transistor IGBT Guide NO 66 ISO 100 199MM Flash Mode M MultiTrigger Mode Camera Set top TX RX S1 S2Zoom Range 20 24 28 35 50 70 80 105 135 199mmVertical rotation angle 70 90 degreesHorizontal rotation angle 0 360 degreesPower supply 4 x AA size batteries Alkaline or Ni MH battery Lighting Times 100 1500 TIM