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Canon EF 28–80mm lens: Kit lens for film-body Canon Elan series. The original version of this lens (with metal mount and full-time manual focus) is considered a vastly superior lens to later versions, however both were included as kit lenses. Canon EF-S 15–85mm lens: Canon EOS 60D, 7D; Canon EF-S 18–135mm lens: 550D, 60D, 70D, 7D ...
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.
Magic Lantern is a firmware add-on for various Canon digital single-lens reflex (DSLR) cameras and the EOS M. [2] It adds features for DSLR filmmaking and still photography, and is free and open-source. Magic Lantern was originally written for the Canon EOS 5D Mark II [3] by Trammell Hudson in 2009 after he reverse engineered its firmware. [1]
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 ...
Canon, Minolta (Sony), Olympus, and other manufacturers have changed lens mounts. Much older Canon film cameras used the FD lens mount, which was discontinued in 1987 in favor of the EF lens mount. Olympus discontinued the OM lens mount for the OM series cameras in favor of the Four Thirds System lens mount.
In most film and digital SLRs, the light sensor(s) for exposure metering are incorporated into the pentaprism or pentamirror, the mechanism by which a SLR allows the viewfinder to see directly through the lens. As the mirror is flipped up, no light can reach there during exposure, the necessary amount of exposure needs to be determined before ...