Canon Speedlite 430EX III-RT

Versatile and High Powered all-round flash unit for Enthusiast Photographers

Take your creative photography to the next level and achieve greater control over lighting with the Speedlite 430EX III-RT flash unit.

Canon Speedlite 430EX III-RT

Canon Speedlite 430EX III-RT

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Beautiful Portraits

The 430EX III-RT external flash unit makes light control more manageable and versatile.
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Bounce Shooting Function

The head is able to turn freely up to 90° up, 150° to the left, and 180° to the right.
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Built-in Catch Panel

A built-in catch light panel delivers light that reflects in the subjects eyes to add life to portrait images.
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Radio Transmitter

This model supports not only optical but also radio transmission for off-camera wireless flash shooting.
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Power Source

Powered by four AA batteries.
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Transmission Distance

Approx. 30m when there is no interference or disruptions.

Selected shots from the Speedlite 430EX III-RT

    Detailed Specifications

    Speedlite 430EX III RT Technical Specifications

    Type

    Type
    E-TTL II/E-TTL autoflashShoe-mount Speedlite
    Compatible cameras
    Type-A EOS cameras (E-TTL II/E-TTL autoflash)* Autoflash is not possible when using Type-B EOS cameras.

    Flash Head

    Guide No
    Approx. 43/141.1 (at 105 mm flash coverage, ISO 100, in meters/feet)* Without color filter or bounce adapter
    Flash Coverage
    Supports a shooting angle of view with a lens focal length of 24-105 mm (with wide panel use: 14 mm)• Automatic setting (Automatically sets the flash coverage depending on the shooting angle of view and the image sensor size.)• Manual setting
    Bounce
    90° up, 150° left, 180° rightBounce adapter provided can be used
    Flash duration
    Normal flash: Approx. 1.8 ms or less, Quick flash: 2.3 ms or less
    Color temperature
    Yes (lens shift-type), approx. 3.5-stop [13].
    information transmission
    Intelligent IS with 5-axis Advanced Dynamic IS
    Color filter
    Color filter provided can be used

    Exposure Control

    Exposure control system
    E-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 compensation
    ±3 stops in 1/3- or 1/2-stop increments
    FE lock
    Possible with the camera's Multi-function button or FE lock/AE lock buttons
    High-speed sync
    Possible* 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 flash
    1/1 - 1/128 power (1/3-step increments)
    Modeling flash
    Fired with camera's depth-of-field preview button or Speedlite's test flash button

    Flash Recycling

    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 lamp
    Lights up in red: normal flash availableLights up in green: Quick flash available

    AF-Assist Beam

    Emission method
    Switchable in Personal Functions between Intermittent flashes (a series of small flashes) and Infrared AF-assist beam
    Emitting small series of flashes
    Supported 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 beam
    Center AF point in viewfinder supportedEffective distance: Approx. 0.7 - 8 m / 2.3 - 26.2 ft.

    Optical Transmission Wireless Slave Function

    Connection method
    Optical pulse
    Wireless settings
    Slave
    Channel
    Ch. 1 - 4
    Slave unit setting
    Firing group A, B, C
    Reception angle
    ±40° horizontally and ±30° vertically, facing the master unit
    Slave flash charge indication
    AF-assist beam emitter blinks and flash-ready lamp lights up on the slave unit

    Customisable Functions

    Custom Functions
    10 types
    Personal Functions
    430EX III-RT: 8 types / 430EX III: 6 types

    Radio Transmission Wireless Master/Slave Function

    Frequency
    2405 MHz - 2475 MHz
    Modulation system
    Primary modulation: OQPSK,Secondary modulation: DS-SS
    Wireless settings
    Master/slave
    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
    Slave flash charge confirmation
    Flash 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
    Linked shooting
    Possible

    Power Source

    Speedlite power source
    Four 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 time
    Approx. 9 continuous hours* When Master flash firing OFF, using AA/LR6 alkaline batteries
    Auto power off
    Power 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 and Weight

    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.
    Weight
    430EX III-RT: Approx. 295 g / 10.41 oz.,430EX III: Approx. 290 g / 10.23 oz.(Speedlite only, excluding batteries)

    Operating Environment

    Working temperature range
    0 °C - 45 °C / 32 °F - 113 °F
    Working humidity
    85 % or less

    Footnotes

    Speedlite 430EX III RT
    All specifications above are based on Canon's testing standards.Product specifications and the exterior are subject to change without notice.