I have to most likely shoot in bright light with little to no clouds at noon. Which three settings should I use? Canon 24-105mm L lens...to maintain native 850 ISO...ND1 f22...ND2 f14...ND3 f7.5. Made some comparisions. It seems ND2 at f14 might be the best? Don't care about shallow depth of field. I'm still not sure.