The new Canon iVIS HF G20’s 1/3-inch HD CMOS PRO sensor, with approximately 2.07 million effective pixels, features enhanced microlens and color-filter transmittance, making possible a 20% improvement in sensitivity compared with the preceding model, the iVIS HF G10 (released in March 2011). The HF G20 offers a minimum illumination rating of approximately 1.2 lux, an improvement over the approximately 1.5 lux offered by its predecessor, enabling users to capture video in environments with even less available light. In addition, its wide dynamic range reduces the occurrence of over- and under-exposed areas when shooting in high-contrast conditions. The device includes a 10x optical zoom Canon HD Video Lens to realize the same level of optical performance as the professional-use XF105 HD video camcorder (released in January 2011).

When capturing a moving subject, the Canon iVIS HF G20’s High-Speed AF function quickly adjusts focus by measuring the distance to the subject. In addition, users can also make use of Medium-Speed AF, which delivers a natural focusing speed. The camcorder includes such functions as Intelligent IS, which automatically selects optimal image stabilization settings based on the shooting situation, and Touch & Track, which allows users to quickly focus on a chosen subject. The iVIS HF G20 is equipped with a lens hood with a lens barrier, which helps minimize unwanted light from entering the lens. Furthermore, the camcorder doesn’t require the use of a lens cap thanks to the inclusion of a built-in lens barrier, which can be opened and closed with the slide of a switch, ensuring users never miss unexpected video opportunities.