One of the least expensive ways to get started with off-camera flash photography is by using the Cactus Wireless Triggers. The Cactus is also referred to as the Ebay trigger since this is where it first caught the attention of photographers all over the world. This wireless RF flash trigger is distributed by Gadget Infinity and we bought ours directly from their website for $32.95 excluding shipping.
The set includes a transmitter that directly mounts on your camera hot-shoe. It has a small test button at the top with a LED indicator lighting when the transmitter is activated. The channel selector is found at the bottom of the unit. The transmitter also came with the type-23A 12V battery pre-installed. The transmitter is tiny compared to other RF units like the Pocket Wizard. It sits unobtrusively on the top of your camera.
