Now you can add filters to your C-LUX with no vignetting through out the entire focal range. Using the Leica filter adapter Kit by Lensmate, only the tiny receiver stays on the camera (it adds only 3mm to the depth of the camera). The filter/filter holder assembly bayonets onto the receiver for quick changes without having to thread the filter on and off. The filter holder is retained by a low tension locking system, so very little torque is applied to the lens barrel when attaching and detaching it.