---
title: Reverse Flash
slug: nexus/reverse-flash
docTags: 
createdAt: 2024-04-02T20:40:22.145Z
---

In some cases you may wish to have a light "reverse flash" – on between captures and dimmed or off for the capture. 

For example, when capturing film on a DT Atom, it can be helpful to have a Stellar mounted on the Atom arm in the normal reflective position to facilitate material handling and reduce eye strain associated with viewing bright light sources in a dim environment. With reverse flash, this light will automatically turn off so that only the transmissive light is used for the actual image. 

### Steps

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Put Stellar Control into Flash mode
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Put the two lights in different groups (see [Grouping and Naming Lights](docId\:asf7C02sozz7jOOP-7yxr))
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Set the power of the transmissive light group to the desired value
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Set the power of the reflective "work" light group to 0.0
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Trigger as normal. The reflective "work" light group will dim to 0 during the capture
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