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The EOS flash system is capable of wireless multiple flash control, whereby a master flash unit IR or RF transmitter mounted on the camera body can control up to 3 (optical) or 5 (radio) groups of flash units. The Canon EOS 7D is the first Canon body to be able to control Speedlites wirelessly without the use of a Master Speedlite or IR ...
As can be seen by referring to the above tables, if a photographer has a camera with an X-sync speed of 1 / 125 th of a second, is shopping for a flash device, and desires the capability to fill shadows from up to 2.5 meters (8 feet) away, a flash device with a guide number of at least 22 (m) / 72 (ft) will be required.
For example, a Nikon D850 has a shutter travel time of about 2.4 ms. [20] 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 ...
Canon Speedlite 270EX II [2] 27m No ... 24, 28, 35, 50, 70, 85, 105mm 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 ... 0.1 to 3 sec for quick 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]
Pages in category "Canon flashes" ... Canon EOS flash system; S. Canon Speedlite; Speedlite 420EX; Speedlite 430EX; Speedlite 430EX II;
Speedlite may refer to: Canon Speedlite , a Canon brand of electronic flashes for their EOS camera system Ricoh Speedlite , a Ricoh brand of electronic flashes
When using rear-curtain flash (when the flash fires at the end of the exposure) and a slow shutter speed, the distinction between the main flash and the preflashes is more obvious. [5] Some cameras and flash units take more information into account when calculating the necessary flash output, including the distance of the subject to the lens.