1. X100T do not have second curtain sync (REAR) function.
2. The AF assist beam will light up when the shutter is at low speed (<200).
3. Please upgrade your Godox Flash Firmware to the latest verison when use with X1T-F.
A: X-Pro2, X-T20, X-T2, X-T1
TTL/M Flash: Standard, REAR, HSS (FP)
Stroboscopic Flash: Standard
AF-assist Beam: Yes
B: X-Pro1, X-T10, X-E1, X-A3
TTL/M Flash: Standard
Stroboscopic Flash: Standard
AF-assist Beam: No
C: X100F, X100T
TTL/M Flash: Standard, REAR
Stroboscopic Flash: Standard
AF-assist Beam: No