Diffusion Filter A diffusion filter, also known as a soft-focus filter or a softening filter, is a type of optical filter used in photography and filmmaking to create a soft, dreamy, or ethereal effect in images. It works by scattering and diffusing light entering the lens, which reduces the sharpness and contrast of the image while creating a gentle glow or halo around highlights.
Diffusion filters are often used to soften skin imperfections in portrait photography, enhance the mood in romantic or atmospheric scenes, or create a sense of nostalgia or fantasy in artistic compositions. They come in various strengths and styles, ranging from subtle to more pronounced effects, and are available as screw-on attachments or drop-in filters for lens-mounted filter systems. |