How fast and how often the mirror is moving?
Respectively after about 1/10th degrees sun-progress (approx. about 20 sec. of time) the two integrated motors are activated in such a manner, that the offset of the reflex is back-corrected. Thereby the runtime of the motors lasts about 1/10th second only! After that, the system waits for 20 seconds again. If the sunset is reached in the evening, the rotor turns the mirror into a position, which had been determined by the operator of the installation before and stops there till sun-rise.
