Specifications

Type

Radio transmission wireless Speedlite transmitter

Exposure control

Flash exposure compensation ±3 stops in 1/3- or 1/2-stop increments
FEB ±3 stops in 1/3- or 1/2-stop increments
High-speed synchronization

Supported

* For details on cameras that support this feature, refer to the Canon website.
Second-curtain synchronization

Supported

* For details on cameras that support this feature, refer to the Canon website.
Manual flash output setting range

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.
Stroboscopic (MULTI) flash setting
Flash count 1 to 100
Flash frequency 1 to 500 Hz
Flash output setting range 1/4 to 1/8192 (in 1-stop increments)

* The minimum flash output level depends on the flash used.

Radio transmission wireless function

Communication functions
Standards compliance IEEE802.15.4, ARIB STD-T66
Transmission method

Primary modulation: OQPSK

Secondary modulation: DSSS
Transmission frequency 2405 to 2475 MHz
Transmission channel

Channel 1–15

Setting: Auto/Manual
Transmission ID

0000 to 9999

Setting: Manual
Transmission distance*1*2 Approx. 30 m / 98.4 ft.
Group Up to 5 groups (A, B, C, D, E)
Number of transmission units Up to 16 senders and receivers in total
Number of sender units

Up to 15

* Unit 2 and subsequent units will be subsenders
Number of receiver units Up to 15
Maximum output power 0.0018 W

*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.

Power source

Speedlite transmitter power source Supplied from the camera
Auto power off The power is automatically turned off if there is no operation for 5 minutes after the camera auto power off.

Dimensions and weight

Dimensions
W x H x D (approx.)

45.5 x 37.8 x 53.6 mm

1.79 x 1.49 x 2.11 in.
Weight
Weight (approx.) 48 g / 1.7 oz.

Operating environment

Operating temperature 0–45°C / 32–113°F
Operating humidity 85% or less
  • All specifications above are based on Canon's testing standards.
  • Product specifications and external appearance are subject to change without notice.

CANON INC.

30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 146-8501, Japan