The Zunow WFX-07 professional optic easily attaches to the 72mm threads on the front of the camcorder's 3.9-78mm lens for 30% more wide-angle coverage. When installed, the WFX-07 modifies the camera's original 3.9-78mm lens to a wider 2.73-54.6mm focal length. When using the 35mm SLR equivalent, the original 37.4-748 lens extends to 26-523mm. The lens retains its full zoom capabilities without light loss or vignetting.The WFX-07 Wide Converter has been elegantly engineered and crafted without sacrifice in quality. Manufactured in Japan, craftsmanship is meticulous in every detail. Materials are the finest grade available. This top quality optical product employs three multi-coated optical glass elements to yield, high definition pictures.