The PIXAPRO PRO ST-IV (equivalent to Godox's XPRO) a 2.4GHz TTL Radio flash trigger system capable of transmitting TTL information between your camera and compatible flashes. The PIXAPRO PRO ST-IV trigger has a transmission range of approximately 100m in an open area, and since the transmitter and receivers use radio waves as opposed to Infra-red, you don't need direct line of sight and is not affected by bright sunlight which can sometimes cause problems with optical flash trigger systems. The PiXAPRO PRO ST-IV transmitter features a large backlit Dot-Matrix LCD display, with a new and intuitive user-interface. The ST-IV now gives you the option of working with up to 5 groups (A, B, C, D and E) of flashes simultaneously. Each group can now be easily accessed via the five-dedicated group selection buttons, located at the side of the LCD screen. You can also mix TTL and Manual flashes together in one lighting set-up. One of the PIXAPRO PRO ST-IV's new features is its TCM function, which enables you to take a shot in TTL mode to attain the correct exposure and then convert the TTL power levels to display on the LCD as Manual power levels, all from the touch of a single button. The PIXAPRO PRO ST-IV supports TTL, HSS (High-Speed Sync) Rear-Curtain sync and stroboscopic multi-flash. It also a USB Type-C port to enable you to update the ST-IV's Firmware as new technologies become available. The perfect solution for busy photographers who require a reliable TTL radio trigger system, with a quick and intuitive interface.
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