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The Speedlite 420EX is an external flash formerly made by Canon. The Speedlite 420EX is one of Canon's older mid-range flashes, being replaced by the 430EX in 2005. It was primarily intended for users wanting to step up from the entry-level flashes, as well as for use as a slave flash along with the more advanced Speedlite 550EX flash.
A Canon PowerShot G11 compact digital camera with a Speedlite 270EX flash mounted. Speedlite is a brand of Canon electronic flashes designed for use with the manual-focus FD system, the autofocus EOS system, and various other cameras such as the Canonet 35mm rangefinders and the PowerShot G series advanced digital compact cameras. [1]
Guide number distances are always measured from the flash device to the subject; if the flash device is detached from the camera, the position of the camera is irrelevant. Furthermore, unless a flash device has an automatic zoom feature that follows the setting of a camera's zoom lens, guide numbers do not vary with the focal length of lenses.
The Canon EOS R6 Mark II is a full-frame mirrorless interchangeable-lens camera produced by Canon. [3] It was announced as the successor to the Canon EOS R6 on November 2, 2022. [ 4 ] It includes various systems developed for the Canon EOS R3 in a more compact body. [ 5 ]
A full-power flash from a modern built-in or hot shoe mounted electronic flash has a typical duration of about 1ms, or a little less, so the minimum possible exposure time for even exposure across the sensor with a full-power flash is about 2.4 ms + 1.0 ms = 3.4 ms, corresponding to a shutter speed of about 1 ⁄ 290 s. However some time is ...
Canon EOS (Electro-Optical System) is an autofocus single-lens reflex camera (SLR) and mirrorless camera series produced by Canon Inc. Introduced in 1987 with the Canon EOS 650, all EOS cameras used 35 mm film until October 1996 when the EOS IX was released using the new and short-lived APS film.