Hi guys, i will be renting a flash unit to coupled off with my 450D for some portraiture shots.
I have 0 knowledge on flash and was wondering how should i be tilting the flash? (i saw pple pointing it directly to ceiling, some do a 90degree to their left...etc).
What sort of flash diffuser should i rent to prevent the flash being too harsh on my subjects?
Can someone be kind enough to direct to a website or gimme a few sentences crash course to at least get me started?