Neutral-density filters
When shooting outside, lighting conditionsare likely to be bright, but you can still use a wide aperture if you use aneutral-density filter. Neutral-density filters are essentially color-neutral(grey) filters which reduce the brightness of the light reaching the film orCCDs. The point is that you reduce the intensity of the light by using aneutral-density filter and then compensate for it by using a wider aperture.Professional camcorders sometimes have one or two inbuilt neutral-densityfilters, which you can engage with a toggle switch. They can reduce theintensity of the light by several stops.