The Sunpak PZ42X flash is the perfect accessory for today"s digital SLR cameras. Compatible with the latest Canon E-TTL II DSLR cameras. The PZ42X has many advanced features, such as automatic zoom head from 24-105mm, bounce and swivel capabilities, built in wide-angle diffuser and AF assist. With a high guide number of 138 (ISO 100/feet), the PZ42X can provide outstanding illumination in any situation. It also offers a bright and easy-to-read LCD display and easy-to-use controls for manual flash output, digital or film lens coverage and zoom head settings. Bright, easy-to-read LCD display and easy-to-use controls Built-in wide angle diffuser Manual power and zoom head settings Flash speed - 1/500 - 1/13,000 second EV adjustment - (-1.5, -1, -0.5, 0, +0.5, +1, +1.5) Recycle time - of 3.5 seconds at full output (Alkaline) Powered by 4 AA batteries, Ni-MH or Ni-Cd batteries Auto power off Pro black finish Dimensions - 4.6 high x 2.6 wide x 4.1 deep Weight - 9.1 ounces (without batteries) Compatible - Canon E-TTL II - Digital Rebel, Rebel XT, Rebel XTi, EOS 40D, EOS 30D, EOS 20D, EOS 5D