Replacing filter in C1 and C1 PRO cameras C1 and C1 PRO cameras can be ordered with filter options: LP0508-P0050 650nm short pass LP0508-P0051 850nm long pass No filter Custom In order to replace a only some basic tools and possibly optics cleaning materials and consumables are needed. Make sure camera is clean so dust particles will not be transferred on a filter or imaging sensor. Unscrew 4 DIN912 M2.5x10 screws (recent models were updated with Torx T5 screws) and remove back plate Unscrew 4 DIN912 M2x5 screws holding PCBA Carefully flip camera holding everything together. Then lift front plate. Filter is resting on silicone spacer. Filter nor spacer is not glued, but will be slightly bonded to each other. Remove filter with tweezers and replace with new one. Inspect optical path for possible dust. Clean if needed. Assembly camera in reverse order.