The Story of 'Grain' in Photography: Recreating Film Grain Digitally | Knowledge #373

In photography, film grain is an 'organic texture' distinct from mere noise. In analog film, the size and density of the grains vary depending on sensitivity (ISO), creating different impressions across tones—from smooth highlights to rough shadows.

This physical characteristic adds depth and nostalgia to photos, both visually and emotionally, and is embraced by many photographers as a way to add 'warmth' to otherwise monotonous digital images. Understanding the 'essence of grain' is the first step to its recreation.

When recreating film grain, the key is not to simply 'add grain' but to 'compose the photo with grain.' Instead of overlaying uniform particles across the entire frame, adjust the coarseness and clarity of the grain by tone—rougher in shadows and smoother in highlights—to create natural tonal differences.

Pay attention not only to the size and density of the grains but also to the sharpness and contrast of the photo itself. Grain tends to stand out in darker areas, so fine adjustments are necessary. Regardless of the editing tool, focusing on the 'balance between grain density and photographic resolution' will result in grain that functions as a 'texture of the photo' rather than just an effect.

Grain is more than a visual effect; it deepens the 'narrative' of a photo. For instance, emphasizing coarse grains with slightly underexposed lighting can highlight feelings of solitude or nostalgia. Conversely, fine and soft grains can create a sense of comfort and warmth.

By altering the type of grain (coarseness, density, tone), you can layer entirely different emotions onto the same composition. Whether using smartphone editing apps or professional software, listen to the 'voice of the grain' and use it as inspiration for your unique expression.