YN560 IV 2.4GHz Wireless Transceiver Integrated Flash Speedlite for , , Pentax Cameras - 2018 New Edition

flash coverage can be altered between 24~105mm through [ZOOM] button.. Settings Save Automatically, Supports Custom Settings (Fn). Supports Wireless Slave Function, fully supports YN560-TX, RF-603(I/II), RF-602 Wireless 。 YN560 can triggered through set top of camera, 2.4G wireless triggering, and pre flash cancel mode. YN560 can be used as master unit, provides 3 independent groups with controlling ability, realizing remote control flash mode, flash output and focal length of YN560 and YN560 III