---
title: "Why do my scans look grainy or color-shifted? | Neo Analog Lab"
url: https://shop.neoanaloglab.com/en/news/faq-grain-color-shift
language: en
description: "Grain is film's nature - amplified by high ISO, pushing, and underexposure. Color shifts usually come from expiry, poor storage, or thin exposure."
---

# Why do my scans look grainy or color-shifted?

Grain is film's nature - amplified by high ISO, pushing, and underexposure. Color shifts usually come from expiry, poor storage, or thin exposure.

faq Neo Analog Lab Published July 9, 2026 Updated July 11, 2026

faq scanning developing

**Grain** is intrinsic to film, but it becomes prominent with: high-ISO stocks (800+), push processing, and above all **underexposure**. When a thin negative is brightened during scanning, shadow grain blows up. If a roll looks "rougher than expected," underexposure is the usual culprit.

**Color shifts** typically come from: (1) expired or heat-damaged film, (2) underexposure (negatives store little color information in the shadows), (3) unusual light sources (fluorescent, mixed light). The classic case: tungsten-balanced cinema film (500T) shot in daylight without a filter goes blue.

We adjust color and density frame by frame, but no scan can recover information the negative never recorded. **"When in doubt, overexpose negatives slightly"** is the single best rule for clean scans.

## Sources

- [Kodak VISION3 500T technical data sheet](https://www.kodak.com/content/products-brochures/Film/VISION3_5219_7219_Technical-data.pdf)
- [ILFORD's official guide to film speed and grain](https://www.ilfordphoto.com/choosing-your-first-ilford-film/)
- [Kodak's GOLD 200 exposure latitude specifications](https://www.kodak.com/en/still-film/product/consumer/gold-200-film/)

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