Canon Speedlite 430EX III

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 flash unit

Canon Speedlite 430EX III

Canon Speedlite 430EX III

4 ⭐⭐⭐⭐ This Canon Speedlite 430EX III has been fully tested and serviced by our team of camera experts and works like new. There are some signs of previous use, but what fun is a rental if you don’t use it? Any signs of previous use are minor and superficial and there are no notable marks or scratches. All the photos to the left are of the item you would receive so you can see for yourself (yes, we really have someone downstairs photographing every preloved product). Includes: user manual, soft case, original packaging, diffuser, bounce card, orange colour filters and camera lighting stand

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Beautiful Portraits

The 430EX III external flash unit makes light control more manageable and versatile.

Bounce Shooting Function

The head is able to turn freely up to 90° up, 150° to the left, and 180° to the right.

Built-in Catch Panel

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

Power Source

Powered by four AA batteries.

Effective Flash Range

Normal flash: Approx. 0.7 - 23.6 m.

Wide Panel

Wide Panel for corner to corner distribution of light.

Detailed Specifications

Speedlite 430EX III Technical Specifications


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
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
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

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.
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


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.