Optics

Film grain

Film grain — the emulsion, not a noise overlay.

Film grain: a optics effect on the built-in sample photograph. Computed on your machine right now.
Open Film grain in the studio

Controls

amount
How much grain there is
grain size
How coarse the grain is, in source pixels, so it stays the same size relative to the picture at any output resolution
in shadows
How much grain lands in the darkest places
in highlights
How much grain lands in the brightest places. Film carries less here, which is why the default is half of the shadows
monochrome
Off, each channel gets its own grain and the noise turns colourful, the way a sensor noises rather than film

Starting points

Nearby in Optics