-Vivitar Bounce Zoom Flash Kit With Batteries For canon SX40 SX30 SX20 G12 G11 G10 T3 XS XSi XTi T3iThis is an Economical, Versatile Electronic Flash that will add lighting when and where you need it. It has an adjustable Bounce Head and it ZOOMS from Wide to Normal to Telephoto! It can be used alone (on a camera with a "HotShoe") or in conjunction with your existing flash.
Using the included Bracket the Digital Flash can be mounted adjacent to your camera or, in Slave Mode, you can place the Flash anywhere you would like more light on your subject.
WORKS IN SLAVE MODE WITH ANY DIGITAL CAMERA that has a Built-in Flash
Flash is simple to use -just install 4 Common AA Batteries, set to "Normal" mode or "Slave" mode, wait for the ready light, and shoot.
Guide Number is approximately 80 (ISO 100/ft @ 50mm).
Slave Flash: In this mode absolutely NO connection to the camera is required; the flash will fire sympathetically (automatically) when your camera's flash fires.
The Slave Flash can be adjusted to fire normally or after your camera's pre-flash light burst (anti Red-Eye mode). Choose to fire after the 1st, 2nd, 3rd, or 4th flash from your camera.