As the Canon top-of-the-line professional flash for the EOS-system, the Speedlite 580EX takes the best features from existing models and adds functionality that enhances digital photography. A more powerful flash with a maximum guide number of 58/191 at ISO 100 in meters/feet (at 105mm focal length), faster recycling, more consistent color and enhanced controls are among the improvements that all photographers, especially those who shoot digital, will find useful.

The Speedlite 580EX flash is compatible with Canon's E-TTL II (Evaluative Through The Lens) auto exposure technology. When combined with a compatible Canon camera (EOS-1D/s Mark II, D-20, Elan 7N/E) and compatible lens, E-TTL II utilizes subject distance and other information that automatically modifies flash power, resulting in accurate flash exposure regardless of subject size, reflectance, or photographic composition. This is great for photographers that shoot high contrast or reflective subjects, like those encountered in wedding photography. Photographers can now capture every detail from the black of tuxedos to the white of wide smiles and wedding dresses.

In addition, when color temperature data is automatically transmitted from the 580EX, the camera sets the color balance for the optimal flash shot.

• Multiple Flash Exposure Modes

E-TTL II, E-TTl, TTL & Manual

• Faster Recycling Time

Improved power supply design provides up to 25% improvement in flash recycle time

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

Built-in catchlight reflector allows a catchlight to be added quickly and conveniently to portraits

Professional Modes

FE Lock Flash exposure lock

FP Mode, or high-speed sync, allows the camera to sync with flash at higher shutter speeds

Second-curtain sync fires the flash at the end of the exposure, allowing streak of light to flow naturally behind the movement of the subject

Wireless TTL flash when combined with ST-E2 Transmitter & multiple 550 EX's

Stroboscopic mode shows several minute flashes continuously to easily view flash effect

FEB Flash Exposure Bracketing

14 Custom Functions that provide maximum control over various flash functions

Ratio flash lighting of up to 8:1 when used with ST-E2 Transmitter & multiple 550 or 580EX's