I have the following lenses, 50mm 1.8 18-55mm 75-300mm I will be doing a photo shoot outdoors and I would like to know which lens would be better and the settings etc. I also have the 430EX flash. Will that be needed and what settings? Will I need my tripod/monopod? Anything else I may need to know. This shoot is in a few weeks so I have a little time to practice...lol Thanks for your help.