The Other YN-622C User Guide
28/08/2013
Page 18 of 23
622 FEATURES
AF-Assist Beam
When using Autofocus under low-light, the AF-assist beam can be emitted automatically to make it
easier to autofocus.
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The 622 acting as Transmitter will emit the beam when required by the camera.
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An on-top flash which has an AF-assist beam function can also emit at the same time.
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Neither a 622 Receiver nor an off-camera flash on the receiver will emit the beam.
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The beam will not be emitted when Live mode or Face detection mode is used.
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The LED laser provides a bright pattern with a 3 to 5 metre range. There is no health risk.
•
The AF-assist beam can be enabled or disabled in a 622 mounted on the camera by using
the camera’s “External flash C.Fn settings”. The setting is saved automatically in the 622.
•
When a 622 is mounted on a camera, the camera menu will conform to that 622’s AF-beam
setting.
Sleep Wakeup
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On ½ shutter or [Test].
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Flash must be mounted on hot-shoe, not PC-sync cord.
•
Flash must have a wake-up facility.
Status Indicator
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Power-up/self-test/initializing - red flash for several seconds, plus selected CH and GP
indicators.
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Standby - steady red.
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Battery low – on startup or half-shutter; Status will rapidly wink Red/Green, and the CH and
GP indicators will dimly wink also. If the voltage becomes low (total 2.2 volts), the 622 will
turn off automatically. Batteries can be too low on startup to trigger this action.
•
622 Transmitter communicating – green wink.
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622 Receiver communicating – red wink.
Group Indicators
The group LEDs indicate three separate settings at different times.
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Receiver Lighting group - briefly on start-up, and when [GP] is pressed.
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Camera’s Firing group – when an on-camera 622 is activated as a transmitter by a)
pressing half-shutter or b) opening External flash menu.
•
Test Firing group – when [Test] and [GP] are pressed.
An on-top flash has no group indication. It is deemed to be in group A, and uses A’s settings.
Receiver Lighting Groups
•
Every 622 belongs to one Receiver lighting group, A - default, B or C.
•
The last-used lighting group is remembered on power-down.
Camera Firing Group
•
The Firing group is set using the camera’s External Flash/Wireless menu settings.
•
When the 622 transmitter is activated, the group indicators will wink as follows
None
Wireless disabled (stand-alone mode)
A LED Wireless enabled, Firing group A+B+C (All)
B LED
Wireless enabled, Firing group A:B
C LED Wireless enabled, Firing group A:B C
Testing Groups
•
[Test] and [GP] shows the groups that will be test-fired (A, B, C, AB, AC, BC, ABC -default).
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An on-top flash will be included in its 622’s lighting group, which may be group A, B or C.
