E-TTL II evaluative flash metering for critically accurate exposure

High output with maximum guide number 58 at 105mm setting (ISO 100, metres)

Autozoom and colour temperature information for improved flash with selected digital SLR cameras

Fully featured wireless flash capability, with built-in slave and transmitter, using multiple Speedlites

Dust and water resistance improves reliability under harsh conditions

Metal mounting foot with new locking mechanism improves connection and communication reliability

Powerful and Efficient

E-TTL II flash metering utilising lens distance information with pre-flash to balances flash with ambient light for more evenly lit and natural looking photos even if the subject includes highly reflective objects

High power flash output with maximum guide number of 58 at 105mm setting (ISO 100, metres)

Highly efficient power supply design providing up to 20% improvement in flash recycle time

Autozoom control with selected digital SLR cameras to automatically match the flash head to the effective focal length of the camera ensuring greater accuracy and optimal output

Colour temperature information transmission with selected digital SLR cameras ensuring optimal colour balance setting for flash output

Professional Features

High-speed (FP) sync mode, Flash Exposure Bracketing (FEB) and Flash Exposure (FE) Lock

Built-in transmitter and receiver offering fully wireless automatic flash with up to three groups of multiple Speedlites that can be controlled from the 580EX II or optional Wireless Transmitter ST-E2

Manual flash output between 1/1 to 1/128 in 1/3 stop increments

Stroboscopic flash output between ¼ to 1/128 with frequency range of 1 to 199Hz

14 Custom Functions with 32 settings permitting customisation of operation to personal preferences

Dust and water resistant system - Exterior seams and joints, window edges, moving parts and the control panel are sealed against dust and water

Silent recycling oscillation frequency is beyond the hearing ability of humans

External metering system work with the flash reflecting off the subject measured by the external metering system
High-speed (FP) sync mode, Flash Exposure Bracketing (FEB) and Flash Exposure (FE) Lock

Built-in transmitter and receiver offering fully wireless automatic flash with up to three groups of multiple Speedlites that can be controlled from the 580EX II or optional Wireless Transmitter ST-E2

Manual flash output between 1/1 to 1/128 in 1/3 stop increments

Stroboscopic flash output between ¼ to 1/128 with frequency range of 1 to 199Hz

14 Custom Functions with 32 settings permitting customisation of operation to personal preferences

Dust and water resistant system - Exterior seams and joints, window edges, moving parts and the control panel are sealed against dust and water

Silent recycling oscillation frequency is beyond the hearing ability of humans

External metering system work with the flash reflecting off the subject measured by the external metering system

Advanced Design

Autozoom head covering a range of 24-105mm or as wide as 14mm with built-in wide panel engaged

Built-in AF-assist beam compatible with EOS multi-point AF systems including 45-point Area AF types

Fully swivelling head with stops at 60, 75, 90, 120, 150 and 180 degrees

Flexible bounce head with stops at 7 (down), 45, 60, 75 and 90 degrees

Built-in catchlight reflector allowing a catchlight to be added quickly and