Canon Speedlite 580EX II User Manual

About this manual

This manual introduces the Speedlite 580EX II, an EOS‑dedicated high‑output flash with dust‑ and water‑resistance. It explains basic operation, flash modes, and how the unit integrates with E‑TTL, E‑TTL II, and TTL camera systems.

Detailed sections cover the LCD panel functions, wireless master/slave configuration, custom functions, and a full parts list with diagrams. Reference tables and safety notes help users safely operate the flash in various shooting scenarios.

What's inside

• Getting Started and Basic Operation
• Using Flash
• Wireless Flash
• LCD Panel Controls
• Nomenclature and Parts
• Reference

Specifications

Frequently asked questions

How do you turn the Speedlite 580EX II on and off?

Use the power switch; press to turn on and to turn off.

How can the flash be used as a wireless slave?

Press the Wireless slave Power ON button to enable slave mode.

What does the button do?

It activates high‑speed sync (FP flash) for flash‑shutter synchronization.