Preston FIZ/MDR Connections

The Preston MDR Mark II or III can be connected with the Airtrack with the included Preston 3 pin or 4 pin cables. The connection on the Preston MDR motor controller is labeled Serial.

To get the best performance and lens sync from the Preston, the firmware on the MDR motor controller should be updated. Steps:

  •  Download the current Preston firmware updater, and unzip it into a directory.

  • Run the MDR Upgrade program. The program will prompt you to connect a Preston MDR (through the Airtrack connection cable), and hold down the MDR Reset button while powering it up. As soon as it detects the MDR, it will update the firmware.

  • Power cycle the MDR when complete.