NEUTRAL DENSITY

Neutral Density or ND Filters evenly reduce the transmission across a portion of a certain spectrum (wavelength) visible, ultraviolet or infrared. There are two types of ND Filters: absorptive and reflective. The absorptive filter absorbs light that is transmitted through a specified filter glass. A reflective filter reflects the light back using a specified optical coating.

Common Uses of ND Filters

Neutral density (ND) filters are optical filters that uniformly reduce the intensity of light entering a camera lens or optical system without affecting its color or spectral characteristics. They are often used in photography, videography, and various optical applications to control exposure and achieve specific creative or technical effects.

ND filters come in various strengths, typically denoted by their optical density (ND number), and can be stacked or combined to achieve the desired reduction in light intensity. Photographers and videographers often carry a range of ND filters to adapt to different lighting conditions and creative requirements.