Vertical angles

#### Issue details
_Please describe the problem, or desired feature_

this is more of a question rather than an issue:
1. 'float every5deg = -this.Height / 65;'
how sure are you about this (65?)/ how did you managed to calculate it ?
are camera specs relevant-effecting this value (/65) ?

2. Is it possible to get camera's vertical angle (?) (ref to code line pls)

#### Version
_What version was the issue encountered with_

#### Platform
[ ] All
[ ] AntennaTracker
[V] Copter
[ ] Plane
[ ] Rover
[ ] Sub

#### Airframe type
_What type of airframe (flying wing, glider, hex, Y6, octa etc)_

#### Hardware type
_What autopilot hardware was used? (pixhawk, pixracer, PX4FMU etc)_

#### Logs
_Please provide a link to any relevant logs that show the issue_

Start by locating the `float every5deg = -this.Height / 65;` expression in Mission Planner and inspect its surrounding angle calculation. Determine whether the value depends on camera specifications and identify the relevant code reference; no failing test or acceptance criteria is provided.

Written by the indexing model from the issue text.