For aerial ortho photos, I want to use my M5 aboard a multicopter with tilt majestic angle mode. However, even with full tilt "down" command, the gimbal only tilts down about 45°, not more. Why? In tilt majestic smooth lock mode, the gimbal tilts to the min tilt angle currently set to -110°, without any problem. I'm using a Futaba RC with SBUS2. Why is the min tilt limited to -45°, any ideas?