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220EX Speedlite : How to use the AF-Assist Beam and what is its coverage
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The Speedlite 220EX AF-Assist beam is emitted automatically to enable precise autofocus under dim light and low contrast conditions. The AF- Assist beam is effective from 1 to 5 meters (3.3 to 16.4 feet)
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QuickGuide to Speedlite 600EX-RT Custom and Personal Settings
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1: Flash ready lamp only By default, the AF-assist beam lamp of each receiver unit will blink when the unit is fully charged. Set this function to 1 if you do not want the AF- assist beam to blink and prefer to use the flash ready lamp alone. You must set this function
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380EX Speedlite : How to use the AF-Assist Beam and what is its coverage
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Speedlite 380EX's AF-assist beam is linkable only to the center focusing point. If the camera has only one focusing point (AF frame) the Speedlite's AF- assist bean is emitted. If the camera has multiple focusing points, the camera's AF-assist beam is emitted instead.
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Added Control with Speedlite 470EX-AI's Personal Functions
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This Personal Function controls which type of focus- assist beam will be used, when it’s mounted directly on an EOS camera, and One -Shot AF is active on the camera. The default is the near-infrared, patterned beam emitted from a section of the front of the Speedlite.
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QuickGuide to Macro Speedlite MR-14EX and MT-24EX
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P , Av, Tv, or M. Choose Manual mode when you want small apertures for maximum depth-of-field combined with a fast shutter speed to help minimize blur and separate the subject from the background. (Light falls off more rapidly at short distances, therefore the closer the flash is to the subject, the darker the background exposure will be unless you either increase the shutter speed/ambient light exposure or light the background separately.)
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How to use the AF-Assist Beam and what is its coverage on the 320EX Speedlite
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] during Live View shooting or movie shooting. The effective range is approximately 4 m 1 13.1 ft. This function only works when used with an EOS digital camera with an external Speedlite control function.
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Explanation of AF assist beam operation
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How to use the AF-Assist Beam and what is its coverage on the 430EX II Speedlite
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How to use the AF- Assist Beam and what is its coverage
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Specifications of the 550EX Speedlite.
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Direct- sync, shoe-mount flash with E-TTL/TTL autoflash control and wireless transmission/reception (E-TTL preflash, AF- assist beam, auto zoom, and bounce flash). Compatible Cameras
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MR-14EX : How to turn on the Focusing Lamps.
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In low-light or when the viewfinder image gets darker at high magnification, it becomes difficult to achieve correct focus. In such cases, the focusing lamp can assist with focusing.
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