Sony VAD-WB Lens Adapter for Sony Cybershot W-series Digital Cameras Provides a 30mm filter and lens mount for DSC-W30, DSC-W50, and DSC-W70 Cybershot digital cameras Allows you to use your camera with the VCL-DH1730 and VCL-DH2630 lenses, and 30 millimeter filter kits such as VF-30CPK S, VF-30NK, and VF-30SC Attaches by screwing into the tripod lug at the bottom of the camera Weighs 1.6 ounces, measures 2.4 inches in length Comes with a user's guide and a manufacturer's limited warranty