The Canon Speedlite 580EX replaces the popular Speedlite 550EX model. A more powerful flash with a maximum guide number of 58/191 at ISO 100 in metres/feet (at 105mm focal length), faster recycling, more consistent colour and enhanced controls are among the improvements that all photographers, especially those who shoot digital, will find useful. It features a more comfortable and easy to use interface in a smaller and lighter package than its predecessors.
E-TTL II Compatibility
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, 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 news for photographers that shoot high contrast or reflective subjects, like those encountered in wedding photography.
The 580EX flash is compatible with all film and digital EOS cameras as well as G-series and Pro-1 PowerShot digital cameras. The flash includes two features especially for digital photography. EOS 20D and EOS-1D Mark II* digital SLR users will especially appreciate the Speedlite 580EX flash's ability to auto-compensate for the size of the CMOS sensor, and zoom the flash head automatically to match the effective focal length conversion. This feature allows the Speedlite 580EX flash to maximize the efficiency of its light distribution and produce more flashes from a set of batteries. When used with the EOS 20D or 1D Mark II digital SLR cameras, the flash and camera communicate to make fine adjustments to auto white balance by electronically monitoring the charge level of the batteries and the duration of each flash burst, resulting in consistently accurate colour for every shot.
Speed, Power and Flexibility
Smaller, lighter, faster and more powerful than its predecessor, the 550EX flash, Canon has further enhanced the new model by reducing the full-power recycling time by about 25 percent, while increasing the maximum Guide Number power rating by about 50 percent.
The new flash unit provides photographers with intuitive controls. The 580EX new control dial, SET button and a high-speed sync / shutter curtain synchronization button put all major functions at the fingertips of the photographer.
The 580EX Flash features an AF-assist beam, which is now better matched to the different focusing point arrangements of various EOS SLRs, compared to earlier models. The unit includes a swiveling flash head that turns a full 180 degrees in both directions, while a single release lock controls tilt and swivel adjustments. A wide-angle diffuser found on the Speedlite flash covers focal lengths as short as 14mm. The flash also features a new catchlight reflector for optimal lighting quality during bounce-flash photography. The Speedlite 580EX flash features a total of 14 Custom Functions that provide maximum control over various flash functions such as recycling with external power and auto-zooming to match sensor size.
* The EOS-1D Mark II will require a scheduled firmware update for these new features.
- Flash Accessories: Canon SB-E1 Bracket Fit
- Guide No. (at ISO 100/m): 58
- Bounce: Yes
- Zoom: Yes
- Swivel: Yes
- Type: Canon AF