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.
- Large Dot Matrix LCD Screen Displaying 5 Groups
- 5 Individual Dedicated Group Buttons
- TCM Function – TTL – CONVERT – MANUAL
- Built-in Zoom Controls
- Global Adjustment of Group Power Levels (ALL Button)
- Large Graphic Menu System with Multiple Custom Functions
- 1x PIXAPRO PRO ST-IV TTL Trigger
TTL Flash TTL Auto flash Manual Flash Control Yes Stroboscopic Flash Yes Radio Frequency 2.4GHz Transmission Power Supply 2x AA Batteries Manual Flash Triggering Yes High-Speed Sync Support Yes Second-Curtain Sync Support Yes Flash Exposure Compensation (FEC) Yes ±3 stops 1/3 stop increments Flash Exposure Lock (FEL) Yes AF Assist Beam Yes Modelling Lamp Control Yes Flash-Ready Tone Control Yes Zoom Control Yes (For flashes with a Zoom feature) TCM Function Transform TTL settings to Manual mode Memory Function Settings will be stored 2 seconds after last operation and recover after a restart. Working Range Approx. 0-100m (In an Open Area) Channels 32 Groups 16 Display Large Back-lit LCD Panel Upgradable Firmware Yes (Via USB Type-C Cable) Power Supply 2x AA Batteries Dimensions 90x58x50mm Net. Weight 80g
This trigger is reliable and does as it's expected. Menus are easy to navigate and I'd recommend it.