My strategy was to shoot the parade in the Tv mode (shutter priority) to prevent blur. I used my Sigma 30 f1.4. I set the shutter speed to 1/100 sec., ISO 3200 (just for fun I did boost the ISO to 6400 for some shots as a test to see how far I could push my new camera) and let the camera set the f-stop. The f-stop ranged from f2 to f8.