An ND filter is a versatile tool that enables photographers and filmmakers to control the amount of light entering their cameras without affecting the color. It provides creative possibilities by allowing for longer exposures, wider apertures, and better exposure control in various lighting conditions. They can also allow you to get beautiful bokeh with off-camera flash.
When using an ND filter, the reduced amount of light requires compensating for proper exposure. You can achieve this by adjusting the shutter speed, aperture, or ISO settings. Understanding exposure triangle basics (shutter speed, aperture, and ISO) is crucial for using ND filters effectively, check out our post on camera settings.