# Coloured Noise and dusts in film scans (Opticfilm 8200i + Vuescan / Silverfast)

**URL:** https://forums.negativelabpro.com/t/coloured-noise-and-dusts-in-film-scans-opticfilm-8200i-vuescan-silverfast/4591
**Category:** Silverfast
**Created:** [January 25, 2022, 6:36am UTC](https://forums.negativelabpro.com/t/coloured-noise-and-dusts-in-film-scans-opticfilm-8200i-vuescan-silverfast/4591 "2022-01-25T06:36:00Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![k256](https://avatars.discourse-cdn.com/v4/letter/k/b2d939/32.png) [@k256](https://forums.negativelabpro.com/u/k256)
#### Post date: [January 25, 2022, 6:36am UTC](https://forums.negativelabpro.com/t/coloured-noise-and-dusts-in-film-scans-opticfilm-8200i-vuescan-silverfast/4591/1 "2022-01-25T06:36:00Z")

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Hello!

I got into film scanning and I am currently using Opticfilm 8200i (for it’s infrared dust removing feature) alongside Negative Lab Pro processing in Lightroom. I current am running into a small problem:

With Silverfast’s scan, no matter what format I export in) it produces undesired coloured grain.

With Vuescan’s, I don’t get that at all. However the dust removal feature isn’t really that great and leaves much to be desired.

I added the illustrated problem below:

Has anyone encountered this problem before? Anything helps! I didn’t know which category to pick since it’s an dilemma for both softwares. I am still trying out a pipeline for myself at the moment so apologies for the vagueness.

 ![yf6p3pinpqd81](https://canada1.discourse-cdn.com/flex029/uploads/negativelabpro/original/2X/a/a8b2381244d1c63b26144eed124c2749df14773a.jpeg)

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### Author: ![filip](https://avatars.discourse-cdn.com/v4/letter/f/919ad9/32.png) [@filip](https://forums.negativelabpro.com/u/filip)
#### Post date: [January 10, 2025, 3:22pm UTC](https://forums.negativelabpro.com/t/coloured-noise-and-dusts-in-film-scans-opticfilm-8200i-vuescan-silverfast/4591/2 "2025-01-10T15:22:26Z")

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Hey @k256, have you found any solution to this? My scans from 8200i are also very grainy. Thanks!

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### Author: ![k256](https://avatars.discourse-cdn.com/v4/letter/k/b2d939/32.png) [@k256](https://forums.negativelabpro.com/u/k256)
#### Post date: [January 11, 2025, 6:41am UTC](https://forums.negativelabpro.com/t/coloured-noise-and-dusts-in-film-scans-opticfilm-8200i-vuescan-silverfast/4591/3 "2025-01-11T06:41:06Z")

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I ended up picking **Sharpen: Lab** instead of **Sharpen: Leave as Set**.