Used only once - wide-angle adapter, lens hood included. 

16x9's 169-HDWC7X-46 EXII Wide Angle Converter is an HD-quality 0.7x add-on lens designed specifically for camcorder lenses using a 46mm filter thread. Providing a 30% wider field of view so you can capture more on-camera action, the converter's full zoom-through capability translates to no edge vignetting at any point along the zoom range. With three multi-coated glass elements to keep barrel distorton and chromatic aberrations to a minimum, the EXII also offers an improved design and lighter weight over previous EX versions. Its threaded front accepts any 67mm filter, with compatibility extending to Chrosziel sunshades and matteboxes--allowing for high-quality imagery in virtually any shooting environment.