Flash for Canon digital SLRs, PowerShot G6, and PowerShot Pro 1

About the Canon Speedlite 420EXby Crutchfield'sDave Bar
Perfect lighting is essential to getting the perfect shot. The Speedlite 420EX provides the versatility and power for more professional-looking flash photography with compatible Canon cameras, including the EOS Digital Rebel and EOS 20D digital SLR models.
Simple to use, yet sophisticated, the fully automatic 420EX's "Evaluative Through-The-Lens" (E-TTL) exposure control works together with your Canon camera to provide the right illumination for your photos every time. All of the necessary connections are made by mounting the flash to your camera's accessory shoe.
The 420EX's flash head can be tilted and swiveled to place just the right amount of light where you want it. Bounced from walls or ceilings, reflected light can provide softer illumination with less glare and fewer shadows. And the powerful 420EX puts more light at your disposal, too. Take low-light shots from far greater distances than your camera's built-in flash will allow.
The 420EX can also be used off-camera as part of a wireless multiple-flash photography system. Using Canon's Speedlite 580EX as the "master" unit, unlimited numbers of 420EX's can be trigged wirelessly to create dramatic lighting effects.
Product highlights:

• E-TTL flash exposure control
• E-TTL II for compatible Canon EOS cameras and EF series lenses
• flash head can be tilted and swiveled
• flash head zooms automatically over a range of 24mm-105mm
• wireless E-TTL flash operation as a "slave" unit
• autofocus assist beam
• maximum guide number (ISO 100) 138 ft./42m (at 105mm setting)
• stand