Powerful, yet compact enough to take anywhere
A guide number of 43 (m, ISO100) means there's enough power for most occasions.
The Speedlite 430EX III-RT weights just 295g and is only 113.8mm long, so there'll always be room for it in your bag.
Powered by readily-available AA batteries, the flash recycles following a full-power flash in just 3.2s.
Simple controls and an intuitive interface
The controls on the Speedlite 430EX III-RT echo those of many EOS cameras. Shortcut controls give access to key features, and a control wheel allows quick adjustments to be made. A lock switch prevents settings from being changed accidentally. An LCD screen shows settings and shooting information at a glance, and is illuminated for low-light conditions.
Use remote flash to create the look you want
Speedlite 430EX III-RT flashes can also be placed away from the camera, to simulate light coming from different directions.
Using Radio frequency triggering, Speedlite 430EX III-RT units can be controlled from up to 30m away, and do not require a direct line of sight with the camera. This means they can be situated in more places, letting you create even more moods and effects.
The Speedlite 430EX III-RT can also be remotely controlled with optical triggering, so it will fit in immediately with your existing flash setup. It can be fired from 10m away using the optional Speedlite Transmitter ST-E2 or the Integrated Speedlite Transmitter built in some EOS cameras.
Use multiple flashes together in groups, controlling the power of each group separately. Up to five groups can be created, with a maximum of 15 flashes in each group.
Shoot flattering portraits using bounced light
A movable flash head allows light to be bounced from large surfaces, like walls or ceilings, creating soft, shadow-free lighting that's perfect for portraiture.
A built-in reflector panel can be deployed to create sparkling 'catch lights' in a subject's eyes, bringing their expression to life.
Fit the included Bounce Adapter to soften the light even more. A colored filter is also supplied, which aims to warm up the color temperature of the flash's output so that it more closely matches the color of indoor ambient lighting.
The Speedlite 430EX III-RT can zoom its flash output to match the angle of view of the lens being used.
Integrates with other Speedlites as part of the EOS Family
Use the Speedlite 430EX III-RT with other flashes, such as the Speedlite 600EX-RT, as part of a multiple flash setup.
Control the Speedlite 430EX III-RT off-camera with a flash trigger, such as the ST-E3-RT, or with an EOS camera's built-in Integrated Speedlite Transmitter.
Dual wireless flash triggering
The Speedlite 430EX III-RT can be fired while off-camera using radio-frequency or optical triggering, giving photographers huge versatility. When using radio-frequency triggering, flashes can be placed up to 30m away from the camera and do not have to be within a direct line of sight. This means they can be placed in many more locations, such as outside a room firing in through a window.
Optical triggering allows EOS cameras featuring a built-in Integrated Speedlite Transmitter (e.g. EOS 760D, EOS 70D, and EOS 7D Mark II) to fire the Speedlite 430EX III-RT from up to 10m away, without the need for extra equipment.
Effective flash range of 2.3 to 77.4'
Exposure compensation of Â3 EV in 1/3 or 1/2 step increments
Light Distribution settings allow for Standard, Guide Number Priority, and Even Coverage settings
Radio master and slave functionality allows for the use of up to 15 flashes set up in 15 channels and 5 groups up to 98.4' away
Using optical transmission it can be set as a slave with an unlimited number of flashes within 4 channels and 3 groups
10 custom Functions and 8 personal Functions are available for dialing in specific settings
The LCD panel on the rear for viewing and changing settings
AF assist beam with a range of up to 13.1'
Fresh batteries will provide approximately 180 full-power flashes
Metal locking foot
Canon 430EX III-RT Spec
Guide Number: 141.08' / 43 m at ISO 100 (105 mm Position)
Coverage: Full-Frame 24 to 105 mm | 14 mm (with Wide-Angle Adapter)
The angle of Coverage: 23.3 to 84 | 114 (with Wide-Angle Adapter)
Bounce Head: 0 to +90
Swivel Head: 330
Recycle Time: Approx. 0.1 to 3.5 Seconds
Secondary Illumination: None
Exposure Control: E-TTL / E-TTL II
Flash Modes: Hi-Speed Sync, Second-Curtain Sync
Power Range: 1/1 to 1/64
Flash Compensation: -3 to +3 EV (1/3, 1/2 EV Steps)
Wireless Operation: Radio Up to 98.43' / 30 m | Optical Pulse Up to 49.21' / 15 m
Wireless Channels: 15
Wireless Groups: 5
Internal Power: 4 x AA (Alkaline, NiMH)
External Power Pack Compatible: No
Off-Camera Terminal: None
Designed For Compatible Cameras
Canon EOS 10D, Canon EOS 1D, anon EOS 1D Mark II, Canon EOS 1D Mark II n, Canon EOS 1D Mark III, Canon EOS 1D Mark IV, Canon EOS 1D X, Canon EOS 1D X Mark II, Canon EOS 1D X Mark III, Canon EOS 1Ds, Canon EOS 1Ds Mark II, Canon EOS 1Ds Mark III, Canon EOS 20D, Canon EOS 30D, Canon EOS 40D, Canon EOS 50D, Canon EOS 5D, Canon EOS 5D Mark II, Canon EOS 5D Mark III, Canon EOS 5D Mark IV, Canon EOS 5D Mark IV Canon Log, Canon EOS 5DS, Canon EOS 5DS R, Canon EOS 60D, Canon EOS 60Da, Canon EOS 6D, Canon EOS 6D Mark II, Canon EOS 70D, Canon EOS 77D, Canon EOS 7D, Canon EOS 7D Mark II, Canon EOS 80D, Canon EOS 90D, Canon EOS M10, Canon EOS M3, Canon EOS M5, Canon EOS M50, Canon EOS M6, Canon EOS M6 Mark II, Canon EOS R, Canon EOS RP, Canon EOS Ra, Canon EOS Rebel, Canon EOS Rebel SL1, Canon EOS Rebel SL2, Canon EOS Rebel SL3, Canon EOS Rebel T1i, Canon EOS Rebel T2i, Canon EOS Rebel T3, Canon EOS Rebel T3i, Canon EOS Rebel T4i, Canon EOS Rebel T5, Canon EOS Rebel T5i, Canon EOS Rebel T6, Canon EOS Rebel T6i, Canon EOS Rebel T6s, Canon EOS Rebel T7, Canon EOS Rebel T7i, Canon EOS Rebel T8i, Canon EOS Rebel XS, Canon EOS Rebel XSi, Canon EOS Rebel XT, Canon EOS Rebel XTS, Canon EOS Rebel XTi, Canon PowerShot G1 X Mark II, Canon PowerShot G1 X Mark III, Canon PowerShot G16, Canon PowerShot G3 X, Canon PowerShot G5 X, Canon PowerShot SX30 IS, Canon PowerShot SX50 HS, Canon PowerShot SX60 HS, Canon PowerShot SX610 HS, MediaBooth Pro Open Air Media Booth, Other Brand EOS EOS-1D X Mark III