|  | Filter and camera box, oblique view | 
          
            |  | Filter and camera box, side view | 
          
            |  | HWP reed switch circuit board location | 
          
            |  | Stepper motor and brak for camera motion | 
          
            |  | Filter Wheel stack with gears, front view | 
          
            |  | Filter wheel stack, back view | 
          
            |  | Filter Wheel stack, side view |