Canon EF Mount

Canon EF Mount Lenses at Avacab Audiovisuales

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Canon EF Mount Characteristics

The Canon EF mount is the standard coupling between lenses and Canon brand SLR cameras. It was introduced in 1987 and is characterized by being entirely electronic, meaning there is no mechanical contact between the body and the lens. The Canon EF mount has a diameter of 54mm and a flange focal distance of 44mm, which means the camera's focal plane is located 44mm from the rear edge of the mount. The Canon EF mount allows the use of lenses with a wide range of focal lengths, from 8mm up to 1200mm, and with different types of stabilization, autofocus, and aperture.

Some advantages of the Canon EF mount are: the speed and precision of autofocus, the ability to control the aperture from the camera body, compatibility with the camera's metering and exposure systems, and the variety of available lenses. Some disadvantages are: the increased weight and size of the lenses, the need for electrical power for the lens to function, and incompatibility with Canon's previous mounts.

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