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[7] [note 4] Another common practice when flash devices are marketed in the U.S. is to provide two guide numbers—which can be expressed in a variety of formats—so distances and f‑numbers may be calculated using either feet or meters, e.g. Guide number: 30 m / 98 ft. [4]
Name Guide number [nb 1] Sync connection Angle of coverage Variable power (manual) TTL Bounce Swivel Interval [nb 2] Optical slave Other notes HSS Cactus RF60 [1]: 56m at 105mm
For example, if the guide number is 100, and the shutter traverse time is 5 ms (a shutter speed of 1/200s), and the shutter speed is set to 1 ⁄ 2000 s (0.5 ms), the guide number reduces by a factor of √ 0.5 / 5, or about 3.16, so the resultant guide number at this speed would be about 32.
It has Guide Numbers of 141 ft/43m (at ISO 100 and 105 mm). [17] [19] It can be used as a wireless optically controlled slave with flashes, flash controllers, or cameras which support Canon's infrared control system, including the 580 Speedlite series, the ST-E2 flash controller, and cameras such as the 7D Mark II. It supports TTL, E-TTL and E ...
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FLASH (Z) is reserved for initial enemy contact messages or operational combat messages of extreme urgency. Brevity is mandatory. Brevity is mandatory. FLASH messages are to be handled as fast as humanly possible, ahead of all other messages, with in-station handling time not to exceed 10 minutes.
Nikon SB-400 Flash (GN 69 ft, 21 m @ 27 mm) The SB-400 is a lightweight and very compact shoe-mount flash unit, powered by only two AA-size batteries. It uses a 40 mm xenon tube. Despite its small size, SB-400 is a very capable flash with a variable angle 'bounce' head (up to 90 deg.). The head lacks tilt movement which is common to larger flashes.
Angel numbers are repeating number sequences, often used as guides for deeper spiritual exploration. Ranging from 000 to 999 , each sequence carries its own distinct meaning and energy.