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The popular Speedlite 580EX Flash is being replaced by the new Speedlite 580EX II Flash, which
features a host of improvements, including a metal hot shoe with an improved locking mechanism for
added durability, an external metering sensor for non-TTL automatic flash exposure control and a PC socket for use with non-dedicated slave triggers. Fully compatible with all EOS SLRs, the new Speedlite 580EX II is gasketed for dust and moisture resistance, making it possible for users of EOS-1 class digital SLRs and many L-series EF lenses to use flash safely when shooting in dusty or wet environments.

Main Features

• 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

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 conveniently to portraits
• Improved reliability with direct contacts with the new metal quick lock and quick release mounting foot, improves connection and communication reliability