Canon 580EX II Flash Instruction Manual

About this manual

This manual explains the features and functions of the Canon Speedlite 580EX II, an EOS‑dedicated high‑output flash compatible with E‑TTL II, E‑TTL and TTL modes. It covers basic operation, wireless master/slave use, and the flash's dust‑ and water‑resistant construction.

Detailed sections describe battery installation, LCD panel controls, flash modes, high‑speed sync, and safety precautions such as limits on continuous firing to prevent overheating. Contact information for Canon service centers worldwide is also provided.

What's inside

• Getting Started and Basic Operation
• Installing the Batteries
• LCD Panel
• Nomenclature
• Conventions Used in this Manual
• Wireless Operation

Specifications

Frequently asked questions

How many AA batteries does the 580EX II require?

It requires four size‑AA batteries.

How many continuous flashes can be fired before the flash head may overheat?

Do not fire more than 20 continuous flashes; allow at least a 10‑minute rest afterward.

How do you turn the flash on and off?

Use the power switch: press to power on and to power off.