YN-560 IV Flash Speedlight is a combination of YN-560 III and YN560-TX it has built-in wireless trigger system, so you can not only use it as flash speed lite, but also a flash controller Transmitter. Specification: Circuit design: Insulated Gate Bipolar Transistor (IGBT)Guide No. 58 meters (ISO 100, 105mm)Flash mode: M, Multi Triggering Mode: Camera set-up, TX, TX, S1, S2 Zoom range: 24, 28, 35, 50, 70, 80, 105mmVertical rotation angle: -7~90 degrees Horizontal rotation angle: 0~270 degrees Power supply: 4×AAsize batteries (Alkaline or Ni-MH are usable)Lighting times: 100~1500 times (AA alkaline cell used)Recycle time: approx. 3s (AA alkaline cell used)Color temperature: 5600k Flash time: 1/200s~1/20000sFlash control: 8 levels of output control (1/128~1/1), 29 levels of fine tuning External interface: hot shoe, PC port and eternal charging port Wireless triggering distance100(2. 4g wireless); 20-25m indoor, 10-15m out door (optical control)Additional features: The electronic flash head zooming, sound prompt, automatically saving setting, power saving mode, overheating protection and advanced options. Suit for: ALL Canon Nikon Pentax Olympus DSLR CameraYongnuo RF-605, RF-603 II, RF-602, YN-622C, YN-622N, YN560-TXYongnuo YN-560 IIIYongnuo Flash Battery Pack SF-17 C / SF-18 Package Including: 1 x YN-560 IV Flash Speedlite1 x Protecting bag1 x Original box1 x Manual in Chinese and English
Yongnuo Flash YN560IV
The YN 560IV speedlight took the 560III and introduced a built in controller as well. Now you can have it all in one nice package. Complete wireless radio signal control is built into the speedlight. Using this as a master flash you can control up to 3 groups of speedlights, 560iii or 560iv. You can make all the adjustment to the power output from this speedlight and it will send the information to the ones that you are using off camera. No need to walk over to make those adjustments.. Portrait photographers, Real Estate photographers and more love this speedlight for its ease of use and its tremendous light output.