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Nikon FlexTT5 ControlTL Firmware 3.800:

- Added support for Nikon D750 (Nikon D750 Camera Firmware C 1.01)
- Added support for Nikon SB-500 Speedlight
- Fixed SpeedCycler. If SpeedCycler ever gave you issues in the past, please try it again!

D750 Operational Considerations:

- This camera will work in the ControlTL system with normal operational considerations and the additional considerations detailed below:
1) Set Custom Function e1 “Flash Sync Speed” to 1/200s (Auto FP) to work with High Speed Sync (HSS) and HyperSync in the ControlTL system.
2) This camera will only perform as expected with the ControlTL system if the camera’s battery is 60% or greater. Always make sure the camera’s battery is fully charged before use.

The following Nikon gear is