Digiscoping with fine results. For exclusive use with COOLPIX 52004200 digital cameras. Easy attachment to camera mount by fastening screw in the cameras tripod socket. This digital camera adapter will not add much weight to your setup because it weighs less than six ounces This adapter also features a cable release for better vibrational stability. Nikon Fieldscope Digital Camera Bracket FSB-1 is used With the Nikon ProStaff digiscoping eyepieces. With a conventional MC eyepiece (the FSB-1 can only be attached using FSA-1, 2). With the Wide DS eyepiece, a Digital Camera Attachment FSA-1, 2, 3 is not necessary. Note The FSB-1 does not work with the Nikon Coolpix 7900 digital camera. In addition, the 7461 (27x40x50x) and 7466 (13-30x20-45x25-56x) eyepieces cannot be used with Nikons digiscoping adapters.