The EF 28-105mm f/4-5.6 uses an aspherical lens element to maintain a high image quality throughout the zoom range. All the elements are made from environmentally friendly lead-free glass. The small size of the lens is due, in part, to the use of a new type of AF drive actuator. The AF speed is faster than with previous lenses in its class when used with the EOS 300V but also with other EOS models. With inner focusing, the front lens does not rotate during focusing. Various accessories can therefore be attached to the front lens without being hindered by lens rotation or movement. |