Hi,

I am quite new to using a flash and would like to experiment a bit with off camera flash.

I have a 430ex flash and a Canon 20D.

Could somebody please give me some advice how I can use these to setup an off camera flash.

Could I still use my build in flash for the front flash in that scenario?

I realize that the 430 can only be a slave but do not really understand how the whole off camera flash thingy works

Thank you