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The M system has an 18 mm flange focal distance (compared to 20 mm for RF and 44 mm for EF and EF-S) and a 47 mm throat diameter (compared to 54 mm for EF, EF-S, and RF). As it is designed for use with an APS-C -sized image sensor , it features the same crop factor (of roughly 1.6) as the existing EF-S lens mount.
The EF-S-mount is a newer subset of the EF standard, introduced in 2003. EF-S lenses can only be used on Canon digital cameras that use the APS-C sensor, for example the 400D (EOS Digital Rebel XTi) and the 40D. EF-S lenses can be distinguished by a white dot on the mount ring, as opposed to the red dot seen on standard EF lenses.
Canon in 2010 was the first to create a lens with Fluoride coating. That lens was the Canon EF 70-300mm f/4-5.6L IS USM. Canon in 2011 made the first fisheye zoom lens, both circular and rectangular. That lens was the Canon EF 8-15mm f/4L Fisheye USM. Canon in 2012 made the first wide angle lens with Image Stabilization.
The EF 35mm f / 1.4L II USM is a successor of the EF 35mm f / 1.4L USM. It was announced at the 27th of August 2015 and is available since October same year. [1] The EF 35mm f / 1.4L II USM lens is the first lens in Canon line up to use a Blue Spectrum Refractive Optics element (BR element) to reduce the chromatic aberration at the blue end of the spectrum. [2]
C. Canon EF 8-15mm lens; Canon EF 11–24mm lens; Canon EF 15mm lens; Canon EF 16-35mm lens; Canon EF 17-35mm lens; Canon EF 22-55mm lens; Canon EF 24-85mm lens; Canon EF 24mm lens; Canon EF 28-70mm lens; Canon EF 28-135mm lens; Canon EF 28-300mm lens; Canon EF 35-70mm lens; Canon EF 35–80mm lens; Canon EF 35–105mm lens; Canon EF 35-135mm ...
The EF-M 32mm f/1.4 STM is an interchangeable prime lens introduced by Canon in September 2018. The lens is based on the EF-M mount that is used in Canon's lineup of mirrorless cameras. It currently is the latest lens published that uses the EF-M lens mount. With a maximum value of f/1.4, it has the largest aperture of all Canon EF-M mount lenses.
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