The Canon WD-H43 Wide-Angle Adapter Lens screws into the front of the HV20's zoom lens to provide an even wider angle of coverage (0.7x) for those times when you are shooting in a confined space or for shooting scenery. The wide-converter is useful indoors as well, since you'll be able to fit more of your subject into the picture frame.
Specifications
Reviews Canon WD-H43 43mm 0.7x Wide Angle Converter Lens for the HV20 & HV30 Camcorders