An exemplary amplifier circuit includes a first group of spatially distributed final amplifier stages having a first configuration, and a second group of spatially distributed final amplifier stages having a second configuration different than the first configuration. The first camera may be a lower resolution than the second camera. The light management components may include an optical receiver and an optical emitter. The pulse generation module creates N generic pulses using the sets of pulse defining parameters, combines the generic pulses into P enable signals, and outputs the enable signals to a laser driver, wherein P is an integer greater than one. Disengagement of the escapement mechanism when the actuator is depressed prevents rotation of the actuating collar.