General Guidelines. Aperture: f/2.8–f/4.0 – if you want to shoot wide open (like 1.4) to let in more light, you always can! Just be intentional when you go that wide, as less things will be in focus. Shutter Speed: 1/60–1/200 sec if shooting with a flash, otherwise try to stay above 1/250 so you don't have motion blur.