>>2674765>low as possible do you mean like f 1.4 or f 11?f1.4. See pic related, that's your lens at 1.4 or something like that. The aperture blades are wide open, letting more light on your sensor.
Remember your lowest shutter speed like this: 50mm lens will get shaky at around 1/50, a 200mm at 1/200. This is usually the lowest you can go.
