lil info first....doing a wedding Sat for a friend (for free). She wasnt going to have anyone before me......that said....I will be taking pics before the wedding (330 pm) at an outdoor location. The area is semi-shaded. I will be using a reflector....do also NEED to use fill flash....is it a must? or should the reflector be enough to rid the shadows? and if I use my flash, should I also use a diffuser? and the wedding will be a 6 indoors, but not at a church....it is actually going to be at a renovated train depot. I have already posted questions about the subject....have one more. I will be using a faster lense as suggested...50mm f/1.8...I will be able to use my flash...should I? If I did, would the diffuser help at all?