hi, I hope someone can give me a bit of advice, recently purchased a canon 80d and was thinking of trying out some cheapish flashguns(neweer/younguo etc.I am unsure as to which would be compatible with the 80d in maybe a 3-4 gun set-up for home portraiture. or if I can just have one ettl master and 2-3 manual slaves or would all ettl guns be better .I live in a smallish apartment so space is an issue. all advice welcome. Mike