Yongnuo CTR-301P Wireless Flash Trigger for Canon Nikon Vivitar Sunpak National Panasonic Pentax

Compatible Models: Canon SpeedLite 580EX II, 580EX, 540EZ, 520EZ, 430EZ, 430EX, 420EX, 420EZ, 380EX  Nikon SpeedLite SB-900,SB-800, SB-600, SB-80, SB-28, SB-27, SB-26, SB-25, SB-24, SB-23,  Vivitar 283, 285HV Sunpak 30DX, 422D, 433D, PZ5000AF National PE-387S Panasonic PE-28S Note: This Flash trigger is not compatible with PT-04 TM.   Quick Overview: It's a new version of CTR-301, which called CTR-301P. We designed it with a PC sync port according to the most of customers' request, we replaced the previous " TEST " bottom to the PC port. you can mount the flash directly on this receiver or hanging it down on the light stand where it can be connected via the PC sync port. It's very helpful for you.   Functions: a), Trigger the flashlight separately (without flash transmitter) because there is a very sensitive light senser on this receiver. b), Trigger the flashlight with the CTR-301 transmitter together. c), 1/4 stand Tripod screw hole can be mounted into the tripod, ballhead, and so on. d), Trigger the vedio flash via the PC cable ( The little plug is 2.5mm, the big plug supports 6.35mm standard vedio flash jack)   Technique Parameter:   Transmitter Receiver Power Source 23A CR2 Standby Output 3uA 0.9MA Range >30M >10M(Otpics control) Frequency Channel 4 Operating Frequency 433MHZ Speed 1/250S   Package Including: 1 x Receiver 1 x Transmitter 1 x PC Sync Cable 1 x CR2 battery