# VueScan Exposure Lock Underexposed

**URL:** <https://forums.negativelabpro.com/t/vuescan-exposure-lock-underexposed/7852>\
**Category:** Vuescan\
**Created:** [May 30, 2024, 8:30am UTC](https://forums.negativelabpro.com/t/vuescan-exposure-lock-underexposed/7852 "2024-05-30T08:30:08Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Giordano](https://avatars.discourse-cdn.com/v4/letter/g/dec6dc/32.png) [@Giordano](https://forums.negativelabpro.com/u/Giordano)\
**Post date:** [May 31, 2024, 9:09am UTC](https://forums.negativelabpro.com/t/vuescan-exposure-lock-underexposed/7852/2 "2024-05-31T09:09:53Z")

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I’ve only digitised negatives with a DSLR or an Imacon scanner (have only used VueScan to scan positives) so I can’t say anything very useful. This thread may help until someone more knowledgeable comes along.  
[https://forums.negativelabpro.com/t/understanding-the-lock-exposure-setting-in-vuescan/4246](https://forums.negativelabpro.com/t/understanding-the-lock-exposure-setting-in-vuescan/4246)

The main thing in most negative scanning is to set the exposure so the histogram shows the film base near the right edge but with no clipping.

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