Add authentic film grain

This prompt adds film grain, slightly lifted blacks, gentle halation around highlights and a subtle colour cast, keeping every detail sharp.

photo-add-film-grain — gemini — 33 words

Add authentic [35mm / 16mm] film grain to this photo, with slightly lifted blacks, gentle halation around highlights and a subtle colour cast.

Keep every detail sharp and do not change the composition.

Edit in the builder Copy & open Gemini ↗Copy & open ChatGPT ↗

Keep the grain fine and subtle for a natural look.

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What you will get

Your photo with real-looking film grain of the type you choose, slightly lifted blacks, gentle halation around highlights and a subtle colour cast, with sharp detail and the same composition.

Why it works

Film has more than grain, so the prompt also asks for lifted blacks, a soft halation glow around highlights and a slight colour cast. Choosing 35mm or 16mm sets how coarse the grain is. Keeping every detail sharp and the composition unchanged makes it a finishing touch rather than a new picture.

Common mistake

The grain looks like digital noise spread evenly.

Fix: Ask for “grain that is stronger in the shadows and midtones and finer in the highlights”. Real film grain is uneven.

Also watch for

The halation turns into a glow that blurs the whole photo. Say “halation only around very bright highlights, a thin red-orange glow”. Keep it local.
The colour cast changes skin tones. Name the cast: “warm, slightly green shadows, natural skin”. A named cast stays controlled.

Try a variation: 16mm look

Choose 16mm and add “slightly larger, rougher grain”. It looks grittier than 35mm.

Still not right? Reply with this

Keep the grain fine and uneven, the halation only on bright highlights and the skin tones natural. Do not blur anything.