ND filters are used to reduce the amount of light entering the lens, allowing the photographer to use a wider aperture or slower shutter speed without overexposing the image.

Diffusion filters scatter light as it passes through them, creating a soft, hazy effect in the image.

Circular polarizing filters reduce reflections from non-metallic surfaces, such as water, glass, and leaves, allowing for clearer and more saturated colors.

Multiple exposure is a technique in which multiple exposures of the same scene are combined into a single image, creating a surreal or artistic effect.

GND filters are used to balance the exposure between the sky and the foreground, preventing the sky from being overexposed while maintaining detail in the foreground.

Time-lapse photography involves capturing a series of still images at regular intervals and playing them back in sequence to create the illusion of movement, often used to show the passage of time.

UV filters are primarily used to block ultraviolet (UV) light from entering the lens, which can cause a bluish cast and reduce image sharpness.

Slow motion is a special effect technique in which the speed at which objects move in a video is slowed down, creating a dramatic or artistic effect.

Color correction filters are used to adjust the color temperature of the image, allowing the photographer to match the lighting conditions or create a specific color mood.

Compositing is a special effect technique in which live-action footage is combined with animated elements, creating a seamless blend of real and imaginary elements.

Star filters are used to create a starburst effect around light sources, adding a touch of glamour or drama to the image.

Motion capture is a special effect technique in which a series of still images of a moving object are captured and combined into a single image to create the illusion of motion.

Vignette filters are used to create a vignette effect, darkening the edges of the image while keeping the center bright, often used to draw attention to the central subject.

Slow motion and fast motion are special effect techniques in which the frame rate of a video is manipulated to create a slow-motion or fast-motion effect, respectively.

Fog filters are used to create a foggy or hazy effect in the image, often used to add atmosphere or mystery to a scene.