TypeE-TTL II/E-TTL autoflashShoe-mount Speedlite
Compatible camerasType-A EOS cameras (E-TTL II/E-TTL autoflash)* Autoflash is not possible when using Type-B EOS cameras.
Guide NoApprox. 43/141.1 (at 105 mm flash coverage, ISO 100, in meters/feet)* Without color filter or bounce adapter
Flash CoverageSupports a shooting angle of view with a lens focal length of 24-105 mm (with wide panel use: 14 mm)Ã¢ÂÂ¢ Automatic setting (Automatically sets the flash coverage depending on the shooting angle of view and the image sensor size.)Ã¢ÂÂ¢ Manual setting
Bounce90ÃÂ° up, 150ÃÂ° left, 180ÃÂ° rightBounce adapter provided can be used
Flash durationNormal flash: Approx. 1.8 ms or less, Quick flash: 2.3 ms or less
Color temperatureYes (lens shift-type), approx. 3.5-stop .
information transmissionIntelligent IS with 5-axis Advanced Dynamic IS
Color filterColor filter provided can be used
Exposure control systemE-TTL II/E-TTL autoflash, manual flash
Effective flash range (with EF50mm f/1.4 lens at ISO 100)Normal flash: Approx. 0.7 - 23.6 m / 2.3 - 77.4 ft.Quick flash: Approx. 0.7 - 13.6 m / 2.3 - 44.6 ft. (at Guide No. 19.1/62.7, in meters/feet)High-speed sync: Approx. 0.7 -12.8 m / 2.3 - 42.0 ft. (at 1/250 sec.)
Flash exposure compensationÃÂ±3 stops in 1/3- or 1/2-stop increments
FE lockPossible with the camera's Multi-function button or FE lock/AE lock buttons
High-speed syncPossible* During radio transmission wireless shooting, high-speed sync is possible only with EOS DIGITAL cameras released in and after 2012 (except with EOS 1200D)
Manual flash1/1 - 1/128 power (1/3-step increments)
Modeling flashFired with camera's depth-of-field preview button or Speedlite's test flash button
Firing interval (Recycling time)Normal flash: Approx. 0.1 - 3.5 sec.,Quick flash: Approx. 0.1 - 2.5 sec.* When using AA/LR6 alkaline batteries
Flash-ready lampLights up in red: normal flash availableLights up in green: Quick flash available
Emission methodSwitchable in Personal Functions between Intermittent flashes (a series of small flashes) and Infrared AF-assist beam
Emitting small series of flashesSupported during viewfinder shooting, and Quick mode during Live View shooting or movie shootingEffective distance: At center: Approx. 0.7 - 4 m / 2.3 - 13.1 ft.At periphery: Approx. 0.7 - 3.5 m / 2.3 - 11.5 ft.
Infrared AF-assist beamCenter AF point in viewfinder supportedEffective distance: Approx. 0.7 - 8 m / 2.3 - 26.2 ft.
Connection methodOptical pulse
ChannelCh. 1 - 4
Slave unit settingFiring group A, B, C
Reception angleÃÂ±40ÃÂ° horizontally and ÃÂ±30ÃÂ° vertically, facing the master unit
Slave flash charge indicationAF-assist beam emitter blinks and flash-ready lamp lights up on the slave unit
Custom Functions10 types
Personal Functions430EX III-RT: 8 types / 430EX III: 6 types
Frequency2405 MHz - 2475 MHz
Modulation systemPrimary modulation: OQPSK,Secondary modulation: DS-SS
ChannelAuto, Ch. 1 - 15
Wireless radio ID0000 - 9999
Slave unit controlUp to 5 groups (A, B, C, D, E), up to 15 units
Slave unit settingFiring group A, B, C, D, E
Transmission distanceApprox. 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 control1:8 - 1:1 - 8:1, 1/2-step increments
Slave flash charge confirmationFlash ready icon lights up on the master unit's LCD panel, AF-assist beam emitter blinks and flash-ready lamp lights up on the slave unit
Speedlite power sourceFour AA/LR6 alkaline batteries* AA/HR6 Ni-MH batteries can be used
Battery life (number of flashes)Approx. 180 - 1200 times* When using AA/LR6 alkaline batteries
Radio transmission wireless shooting timeApprox. 9 continuous hours* When Master flash firing OFF, using AA/LR6 alkaline batteries
Auto power offPower off after approx. 90 sec. of idle operation* When set as radio transmission wireless master unit, or in linked shooting: approx. 5 min.* When set as slave unit: approx. 60 min.
Dimensions (W x H x D)Approx. 70.5 x 113.8 x 98.2 mm / 2.78 x 4.48 x 3.87 in.
Weight430EX III-RT: Approx. 295 g / 10.41 oz.,430EX III: Approx. 290 g / 10.23 oz.(Speedlite only, excluding batteries)
Working temperature range0 ÃÂ°C - 45 ÃÂ°C / 32 ÃÂ°F - 113 ÃÂ°F
Working humidity85 % or less
Speedlite 430EX III RTAll specifications above are based on Canon's testing standards.Product specifications and the exterior are subject to change without notice.