I have an SB-800 flash unit for my Nikon D200. The computer in the flash communicates with the computer in the camera which inturn talks to the computer in the lens.and adjusts for the lens I'm using. I also have an SB-16B for my 35mm. It while not a...
The 580EX II is considered Canon's "flagship" flash. It is a perfect match for your camera. Canon offers the SB-E1 off-camera flash bracket - buy it along with the flash.
Most digital cameras come with a flash of some sort and many of these are pop-up. All it means is that the flash is concealed but when required, it will pop-up from within the camera body, usually on the top. These flashs are pretty small and without...