ZEISS Lens Gears make ZEISS Otus, ZEISS Milvus and ZEISS Loxia lenses a proper cine-style lens for professional filmmakers. The ZEISS Lens Gears are available in five different sizes. They are supplied with a rubbercovered band, the GumGum, which features an adhesive surface. This means the inner diameter can be reduced according to the lens diameter, thus supporting multiple lenses. The GumGum also protects against scratches and other damage to the focus ring of the lens.