The EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens. Mechanically, it is a bayonet-style mount, and all communication between camera and lens takes place through electrical contacts; there are no mechanical levers or plungers. The mount was first introduced in 1987.
The Canon FD lens mount is a physical standard for connecting a photographic lens to a 35mm single-lens reflex camera body. The standard was developed by Canon of Japan and was introduced in March 1971 with the Canon F-1 camera. It served as the Canon SLR interchangeable lens mounting system until the 1987 introduction of the Canon EOS series cameras, which use the newer EF lens mount. The FD mount lingered through the release of the 1990 Canon T60, the last camera introduced in the FD system, and the end of the Canon New F-1 product cycle in 1992.
The EF 80–200mm lens is a discontinued telephoto zoom lens made by Canon. The lens has an EF lens mount that fits the EOS line of cameras.
The Canon EF 28–90 mm is a lens included as a kit lens with Canon EOS film cameras.
Canon's series of L lenses are a professional line of photography lenses made by Canon. Canon has sold zoom and prime L-series lenses for the discontinued FD lens mount, for the current EF lens mount used on all Canon EOS SLR cameras and for the RF mount used on full-frame mirrorless interchangeable-lens cameras.
Eight designs of Canon FD 200 mm lens were produced for the Canon FD lens mount. These spanned two generations and varied by aperture and macro ability. These photographic lenses were:
The EF 24–105mm f/4L IS USM is an EF mount wide-to-telephoto zoom lens. It was introduced by Canon in 2005 to complement the well-regarded 17–40mm f/4L USM and 70–200mm f/4L USM.
The EF 100–400 mm f/4.5–5.6L IS USM is a professional EF mount telephoto zoom lens manufactured by Canon Inc. The first version of this lens was announced in September 1998, and an updated version was announced in November 2014. It is a high performance telephoto lens most often used for sports and wildlife photography.
The Canon EF 100 mm lenses are used for Canon DSLR cameras. There are four different types of EF 100 mm lens for Canon. Certain lenses are best for macro photos, whereas other lenses are good for taking pictures of subjects from a distance.
The EF 200mm USM lens is an L-series prime telephoto lens made by Canon Inc. for the EOS line of cameras. Four 200 mm primes were made: f/1.8, two f/2.8, and the most recent f/2.0.
Canon Inc. has produced seven different 24mm lenses for its Canon EF and EF-S lens mounts. Three have been discontinued after updated replacements were announced.
The Canon EF 22–55mmf/4–5.6 USM lens is a consumer grade lens that has now been discontinued. It was originally released in February 1998, as one of two kit lenses for the Canon EOS IX Lite, an APS-format film SLR, although it is also fully compatible with Canon's 35mm film SLRs, and subsequent APS-C and full-frame DSLRs.
The EF 100–300mm refers to three telephoto zoom lenses produced by Canon. They are of the EF lens mount that is compatible with the EOS line of cameras.
The Canon EF-M lens mount, introduced in 2012, is a derivative of the Canon EF lens mount designed for use with the Canon EOS M mirrorless interchangeable-lens camera. The EF-M lens mount is one of Canon's two new systems for mirrorless cameras, the other being the RF mount.
The EF28-200mm f/3.5-5.6 USM lens was a superzoom lens made by Canon Inc.
The EF 35-80mm f/4-5.6 USM lens is a family of EF mount wide-to-normal zoom lenses manufactured and sold by Canon. There were five versions made. One contained a peizoelectric motor, three contained a micro motor, and one contained a USM motor.
The EF55-200mm refers to two telephoto zoom lenses produced by Canon. They are of the EF lens mount that is compatible with the EOS line of cameras.
The Canon EF 50-200mm f/3.5-4.5 is an EF mount normal-to-telephoto zoom lens. It is one of the first lenses in the Canon EF series.
The Canon RF lens mount is an interchangeable-lens mount developed by Canon for its full-frame mirrorless interchangeable-lens cameras, and featured first by the EOS R, followed by the EOS RP. The RF mount was announced in September 2018.
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