The Other YN-622C User Guide v.4.09
11/12/2014
Part II – 622C Transceivers Page 31 of 64
LCD Display
• Flash zoom, focal length, ISO, shutter speed, FE Lock, HSS change with settings.
Pilot Indicator
• A test flash can be fired on any individual flash by pressing that flash’s Pilot Indicator.
622C TRANSCEIVER FEATURES
Saving the Settings
• Most External Flash Menu settings (including AF-assist C.Fn) are saved automatically in
the Transmitter 622C. Each 622C holds its own Master values, and can change the
camera’s menu settings unexpectedly when mounted on the camera.
• Not stored are FEB, Zoom, E-TTL Fire ratio and Group C’s FEC, which revert to default
values on power-up.
AF-Assist Beam
Autofocus Assist
When using Autofocus under low-light, the AF-assist beam can be emitted automatically to make it
easier for the camera to auto-focus.
• Each 622C carries its own setting for the C.Fn 8 (or similar) enable/disable setting for
“AF-assist beam firing”.
• Set the value by placing a 622C on the camera’s hotshoe, and use the camera’s “External
flash C.Fn settings” menu to make the setting.
• The user must also enable the AF-assist beam in the camera, Set camera’s Custom
Function / Autofocus assist beam to “Enable” or “Only ext. flash”).
• This setting controls both the focus-assist and the confirmation indicator.
• The camera reads the setting from the 622C transmitter when a 622C is mounted.
• The 622C Transmitter will emit the beam when required by the camera.
• An on-TX flash which has an AF-assist beam function can also emit at the same time.
• Neither a remote 622C nor a remote flash will emit the A/F beam.
• The beam will not be emitted when Live mode or Face detection mode is used.
• The LED laser provides a bright pattern effective up to 4 metres. There is no health risk.
Menu Setting Confirmation
When a change in the camera menu is successfully applied to a remote Class 1 flash, the remote
622C’s AF-Assist Beam will flash twice when the [Set] button is pressed
• The confirmation light will be emitted only if the remote 622C has C.Fn 8 enabled.
Sleep Wakeup
• Issued on half shutter or [Test].
• Flash must be mounted on a 622C hot-shoe, not by a PC-sync cord.
• Flash must have a wake-up capability.
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