Canon Speedlite ST-E10 Advanced User's Manual page 82

Specifications
Type
Radio transmission wireless Speedlite transmitter
Exposure control
Flash exposure compensation
FEB
High-speed synchronization
Second-curtain synchronization
Manual flash output setting range
Stroboscopic (MULTI) flash setting
Radio transmission wireless function
Communication functions
±3 stops in 1/3- or 1/2-stop increments
±3 stops in 1/3- or 1/2-stop increments
Supported
* For details on cameras that support this feature, refer to the Canon website.
Supported
* For details on cameras that support this feature, refer to the Canon website.
1/1 to 1/8192 (in 1/3-stop increments)
* For high-speed synchronization, minimum flash output is 1/128.
* The minimum flash output level depends on the flash used.
Flash count
Flash frequency
Flash output setting range
* The minimum flash output level depends on the flash used.
Standards compliance
Transmission method
Transmission frequency
Transmission channel
Transmission ID
*1*2
Transmission distance
Group
Number of transmission
units
Number of sender units
Number of receiver units
*1: With no obstructions between sender and receiver and no radio interference from
other devices.
*2: The transmission distance may be shorter depending on the placement
conditions, surrounding environment, weather conditions, etc.
82
1 to 100
1 to 500 Hz
1/4 to 1/8192 (in 1-stop increments)
IEEE802.15.4, ARIB STD-T66
Primary modulation: OQPSK
Secondary modulation: DS-SS
2405 to 2475 MHz
Channel 1–15
Setting: Auto/Manual
0000 to 9999
Setting: Manual
Approx. 30 m / 98.4 ft.
Up to 5 groups (A, B, C, D, E)
Up to 16 senders and receivers in total
Up to 15
* Unit 2 and subsequent units will be subsenders
Up to 15