Product Highlights
  • Up to 1/250 Sec. HSS High Speed Sync
  • 115-966 Flashes
  • 0.1-5.5s Recycle Time
  • 3 f-Stop Power Range
  • Built-In Wireless Receiver
  • 154' at ISO 100 and 105mm Guide Number
Canon Speedlite 470EX-AI Canon Speedlite 470EX-AI
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The world's first flash equipped with auto intelligent bounce

Wherever you are on your journey to mastering flash photography, it’s easy to simplify and streamline your techniques with the ground-breaking Speedlite 470EX-AI, the world’s first flash with an AI (Auto Intelligent) Bounce function. It can select and maintain the ideal bounce flash angle and settings, automatically swiveling the flash head into place to help easily create gorgeous lighting effects. Combined with a number of powerful and versatile features, the Speedlite 470EX-AI is an innovative, well-rounded performer. It just might change the way you think about flash photography!

Take Hold of the beauty of bounce flash photography

Bounce flash photography may be difficult to master, but the Speedlite 470EX-AI takes the guesswork out with its incredible AI Bounce function*. By calculating the optimal bounce angle and moving itself into place, the Speedlite 470EX-AI can determine both the appropriate camera exposure and flash output for beautiful and natural photography. The bounce settings you’ve selected can also be automatically maintained when switching from horizontal to vertically oriented compositions, helping you stay ready for the ideal shot.

Master Bounce Flash Photography with Ease

AI.B Full-auto mode helps make bounce flash photography fast and easy by taking the guesswork out of setting up and automatically creating a brilliant light source for the situation at hand. First, it fires a preflash to calculate the distance from the flash to the subject, then points the flash head up to determine ceiling height up to 23 feet. Using this information, the Speedlite 470EX-AI determines the optimal bounce angle and exposure parameters before moving itself into an ideal position to capture just the right amount of illumination.

Push Your Bounce Flash Creativity Further

For seasoned flash photographers, the AI.B Semi-auto mode can maintain the specified bounce angle when the camera's orientation is changed. This means you can store the bounce angle you’ve defined in the flash’s memory, and can direct the flash to recreate that angle when switching between vertical and horizontal compositions. Registered bounce settings are then easily restored by simply pressing the shutter button twice. AI.B Semi-auto can be a huge time saver, enabling you to focus on the your subject and composition without having to return to flash settings every time the camera’s orientation changes. It also lets you experiment with creative lighting, such as bouncing the flash off the wall, while still providing beautifully natural results.

An All-around Flash Performer

In addition to its ground-breaking AI Bounce feature*, the Speedlite 470EX-AI is a remarkably agile and high-performing flash. From its powerful light output to its AF assist beam for low-light focusing, the Speedlite 470EX-AI is equipped with numerous features for versatile flash photography.

Maximum Guide Number of 47 (154 ft./47m), Wide Zoom Range of 24–105mm

Boasting the power and flexibility for numerous shooting situations in a compact and lightweight package, the Speedlite 470EX-AI has a guide number of 47 (when focal distance is at 105mm) and a broad flash distribution range of 24-105mm.

AF Assist Beam for Low-light Focusing

The Speedlite 470EX-AI is designed to help achieve sharp focus, especially in situations where the camera’s AF system may experience difficulties.

Infrared Beam System

When you need to be more discreet, using the infrared beam can ensure sharp focus by emitting a steady infrared beam toward the subject, even during bounce shooting.

Intermittent Flash

The Speedlite 470EX-AI emits a small series of flashes. Since illumination reaches the entire picture area, this AF-assist beam mode is effective when a peripheral AF frame is chosen.

Flash Exposure Adjustment Range

To help you change the balance of light between subject and background to your liking, the Speedlite 470EX-AI's exposure is adjustable within a range of ±3 stops in 1/3 or 1/2 step increments. A dedicated dial makes it fast and easy to make these adjustments on the fly.

Flash Angle Range

The Speedlite 470EX-AI has a flexible and wide bounce angle range of up to 120° upward and 180° horizontally. With AI Bounce, angles within this range can be maintained regardless of camera orientation.

Wireless Receiver Function

Off-camera flash is quick and easy with the Speedlite 470EX-AI, which can serve as a receiver unit as part of an optical wireless flash setup at distances of up to 49.2 ft./15m (indoors). With wireless flash, ambitious lighting setups can be created almost anywhere, without the need for extra power sources or connecting cables.

Soft Lighting with a Bounce Adapter

Ideal for providing diffused soft light, the Speedlite 470EX-AI’s Bounce Adapter SBA-E4*** helps ensure even more natural-looking, detailed images with suppressed shadow effects. Bundled with the Speedlite 470EX-AI, the Bounce Adapter SBA-E4 can be an indispensable tool for portraits and group photographs.

Distribute Light to All Corners with the Wide Panel

The Speedlite 470EX-AI’s wide panel expands coverage even further. Especially suitable for use with an ultra-wide angle lens, this wide panel provides diffused light distribution for focal lengths as wide as 14mm (with 35mm full-frame sensor), minimizing vignetting even in the corners of the composition.

What's Included

Canon Speedlite 470EX-AI
SBA-E4 Bounce Adapter
Speedlite Soft Case


Product Specifications


Compatibility Type-A EOS cameras (E-TTL II/E-TTL autoflash)
With Type-B EOS cameras, only manual flash and second-curtain sync are possible.
Guide Number The maximum Guide No. is approximately 154 ft./47m at ISO 100 and 105mm flash coverage.

When the extendable wide panel is pulled out, the flash coverage is 14mm.

Number of Flashes When using flash only and AA/LR6 alkaline batteries
Approx. 115–800 flashes

When using flash only and AA/HR6 Ni-MH batteries
Approx. 140–966 flashes

Nominal min. time when using 1900mAh type AA/HR6 Ni-MH batteries.
Based on Canon Testing Standards.

Recycling Time When using flash only and AA/LR6 alkaline batteries
Normal flash: 0.1–5.5 sec.
Quick flash: 0.1–3.9 sec.

When using flash only and AA/HR6 Ni-MH batteries
Normal flash: 0.1–3.5 sec.
Quick flash: 0.1–2.8 sec.

Nominal min. time when using 1900mAh type AA/HR6 Ni-MH batteries.
Based on Canon Testing Standards.

Flash Range Effective flash range with EF 50mm f/1.4 lens at ISO 100 and standard light distribution
Normal Flash:
Approx. 2.3–77.1 ft./0.7–23.5m
Quick Flash (at Guide No. 66.3 ft./20.2m):
Approx. 2.3–47.2 ft./0.7–14.4m
High-speed Sync (at 1/250 sec. shutter speed):
Approx. 2.3–41.0 ft./0.7–12.5m
AF Assist Beam System:
Infrared AF-assist beam

Compatible AF System:
TTL second image formation phase-difference AF
Supporting 1–16 AF points (28mm or longer focal length)
Phase-difference AF during viewfinder shooting
Quick mode during Live View shooting and movie shooting
Effective Range (Approx.):
At center: 2.3–32.8 ft./0.7–10.0m
At periphery: 3.3–16.4 ft./1.0–5.0m

Custom Functions 10 Custom Functions
9 Personal Functions
Power Source Four AA-size/LR6 alkaline batteries
Size-AA/HR6 Ni-MH batteries also usable.
Lithium batteries cannot be used.
Dimensions (W x H x D) Flash unit: Approx. 2.94 x 5.13 x 4.14 in./74.6 x 130.4 x 105.1mm
Bounce adapter: Approx. 3.08 x 2.19 x 1.58 in./78.3 x 55.7 x 40.2mm
Weight Flash unit (excluding batteries): Approx. 13.6 oz./385g
Bounce adapter: Approx. 0.53 oz./15g

Questions & Answers

Canon Speedlite 470EX-AI

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