I am renting a 5d mark3 for my sisters wedding. it is outdoors and about 60 people. she has a pro for her formal pictures but thats it. so I am taking pictures mostly for myself but hoping to get some good shots for her. I am also going to rent a flash and trying to get away with just renting one lens if possible, but will do 2 if neccesary. was thinking 24-70l and 70-200 2.8. I own a 50 1.4 aslo. never have shot on a full frame so not sure what to use. can i get away with my 50 for wide and rent a 70-200 or is the 50 not going to be wide enough? or should i just get the 24-70.?