A camera flash is a powerful light source that can be used to add light to dark scenes. It can also be used to create creative effects, such as backlighting or rim lighting. Camera grips are devices that attach to your camera and provide a more comfortable grip, which is usually more helpful for taking long shots or for shooting in low light conditions, whilst a camera filter is a piece of glass or plastic that screws onto the front of your lens. It can be used to change the way your photos look, such as by adding colour, contrast or blur.