A term from cinematography and camera work.
Definition
The 8-point star is a characteristic visual effect in cinematography, created by special star filters or cross screen filters placed in front of the lens. This filter consists of a fine grid with eight radial lines that transform point light sources in the image into eight-pointed, star-shaped light flares. The effect is produced by the diffraction of light at the thin grid lines of the filter.
In contrast to the more commonly used 4-point star, the 8-point variant creates a more complex, decorative lighting effect with additional diagonal rays. The intensity and length of the rays depend on the brightness of the light source, the aperture setting, and the specific filter type.
Application in Practice
The 8-point star is primarily used in emotional or romantic scenes to create a dreamy, fairytale-like atmosphere. It is particularly effective in night shots with streetlights, candles, or other point light sources. In music videos, commercials, and fantasy productions, it is deliberately used to enhance glamorous or magical moments.
Technical Details
Available in various strengths (2x, 4x, 6x), which determine the length of the light rays. A closed aperture (f/8-f/16) enhances the star effect, while open apertures diminish it. The filter can also be digitally simulated in post-production, although optical filters usually appear more natural.