Canon's WD-H58W 0.8x Wide Converter Lens is optically matched to go with the XA10 HD camcorder, but it is also compatible with other Canon camcorders and can be attached to any lens with a 58mm filter thread. The WD-H58W brings a wider angle of view to your images, for example converting the XA10's 30.4mm lens into 24mm and allowing you to pack more of your subject into the frame. This comes in handy when shooting groups of people, small rooms, or wide landscapes.