Canon Speedlite 430EX III-RT 业主指南

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Type:

E-TTL II/E-TTL autoflash
Shoe-mount Speedlite

Compatible cameras:

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

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° right
Bounce adapter provided can be used

Flash duration:

Normal flash: Approx. 1.8 ms or less, Quick flash: 2.3 ms 
or less

Color temperature 
information transmission:

Flash light color temperature information transmitted to 
camera when flash is fired

Color filter:

Color filter provided can be used

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 REBEL T5/1200D).

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