I will be shooting a summer games event with baskeball, volleyball, swimming, tennis, and athletics. I have a wide angle and a zoom for outdoors but need something faster for indoors. Right now I'm debating the 50 and 85 mm 1.4's (Konica Minolta 7D). Would like to hear opinions as to which would serve me better. I'm concerned that the 50 won't get me close enough and thinking that generally the 85 would be better and could double as a good portrait lens, even though it costs more. What do you think?