Canon Speedlite 600EX II-RT Manual (en)

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135
Specifications
 
Radio Transmission Wireless Master/Slave Function
Frequency:
2405 MHz - 2475 MHz
Modulation system:
Primary modulation: OQPSK, Secondary modulation: 
DS-SS
Wireless settings:
Master/slave
Transmission channel:
Auto, Ch. 1 - 15
Wireless radio ID:
0000 - 9999
Slave unit control:
Up to 5 groups (A, B, C, D, E), up to 15 units
Slave unit setting:
Firing group A, B, C, D, E
Transmission distance:
Approx. 30 m / 98.4 ft.
* When there are no obstacles or obstructions between 
the master and slave units with no radio interference 
with other devices
* Transmission distance may be shorter depending on 
the relative positions of the units, surrounding 
environment, weather conditions, etc.
Flash ratio control:
1:8 - 1:1 - 8:1, 1/2-step increments
Charge confirmation:
Display panel (master unit): Display contents/
illumination color, flash-ready lamp lights up (master 
unit/slave unit), beep (when C.Fn-20-1 is set on master 
unit/slave unit), and the AF-assist beam emitter blinks 
(slave unit) when fully charged
Linked shooting:
Possible
 
Optical Transmission Wireless Master/Slave Function
Connection method:
Optical pulse
Wireless settings:
Master/slave
Transmission channel:
Ch. 1 - 4
Slave unit control:
Up to 3 groups (A, B, C)
Slave unit setting:
Firing groups A, B, C
Transmission distance:
Indoors: approx. 0.7 - 15 m / 2.3 - 49.2 ft., 
outdoors: approx. 0.7 - 10 m / 2.3 - 32.8 ft. (at the front)
Reception angle:
±40° horizontally and ±30° vertically, facing the master 
unit
Flash ratio control:
1:8 - 1:1 - 8:1, 1/2-step increments