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Evaluative-Through The Lens (E-TTL) is a Canon EOS flash exposure system that uses a brief pre-flash before the main flash in order to obtain a more correct exposure. Unlike TTL and A-TTL metering, which use a dedicated flash metering sensor mounted in the base of the mirror box, E-TTL uses the same evaluative metering sensor used for ambient ...
The Canon EF 28–90mm f / 4–5.6 is a full frame SLR zoom lens, also often included as a kit lens with Canon EOS film cameras. The maximum aperture is f / 4 at 28mm, reducing to f / 5.6 at 90mm. When set to 90mm, this will create a moderate amount of background blur for portrait photography. There are several versions of this lens.
The Canon Extender EF lenses are a group of teleconverter lenses made by Canon. These lenses are used between any compatible EF type lens and any of the Canon EOS line of cameras. When used with a compatible lens, they will multiply the focal length of the lens by a factor of either 1.4x or 2x, at the cost of decreasing the lens' aperture by 1 ...
Canon EF-S 18–135 IS USM lens: Optional on 7D Mark II, 80D, 77D, and 800D. Canon EF-S 18–200mm lens: 50D, optional on 60D; Canon have also marketed twin lens kits, typically with the non IS version of the Canon EF-S 18-55mm lenses and Canon EF 55-200mm lens: A now discontinued lens supplied with earlier cameras such as the 350D. Canon EF 75 ...
The Canon EF 28–70mm f / 2.8L USM is an EF mount wide-to-normal zoom lens made by Canon from 1993 to 2002. It was replaced by the 24–70mm f / 2.8L USM.The original manufacturer's suggested retail price was ¥180000 (equivalent to ¥188,239 in 2019).
From left to right: EF 28-300mm f / 3.5-5.6L IS USM, 70–200 f / 2.8L IS USM, 300mm f / 2.8L IS USM, 500mm f / 4L IS USM. The EF 500mm lenses are a group of super-telephoto prime lenses made by Canon that share the same focal length. These lenses have an EF type mount, and fit the Canon EOS line of digital single lens reflex cameras.
The EF 17–40mm f / 4L USM lens is a wide-angle lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras. Other than the front element, it is sealed against dust and water, and features a diaphragm which remains nearly circular from f / 4 to f / 8. It is one of the few Canon photo lenses that are parfocal. [1]
Canon EF 70–200mm f/2.8L IS II USM with lens hood. The EF 70–200mm lenses are a group of telephoto zoom full-frame lenses made by Canon. The lenses have an EF mount to work with the EOS line of cameras. The lens comes in seven different versions, all of which have fixed maximum aperture at all focal lengths, and are L-series lenses. f/4L ...