The EF Cinema Zoom lens 30-300mm T2.95-3.7 provides a 10x zoom range for the Super 35mm format. Intended for the working professional, this lens is designed to fulfill contemporary 4K production standards. It features advanced optical design with fluorite and large aspherical lens elements to achieve sharp, consistent images throughout their zoom range. Canon engineers also incorporated geared inner focusing to minimize focus-induced changes in the angle of view, reducing focus breathing virtually to zero. The 11-blade aperture diaphragm ensures smooth out-of-focus areas, while innovative glass construction counteracts barrel expansion and contraction to avoid temperature-induced marking discrepancies. Sharing the same gear position, diameter and rotation angle, and front diameter—the lenses' compatibility with third-party accessories allows crews to easily change lenses without making adjustments to the rig setup.
