> For the complete documentation index, see [llms.txt](https://docs.gremsy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gremsy.com/payloads/general/advanced-configuration/night-mode.md).

# Night Mode

To improve visibility and image quality during nighttime operation, it is recommended to optimize the EO camera settings. Appropriate adjustment of parameters such as exposure, gain, shutter speed, and image enhancement can help achieve better performance in low-light environments.

Gremsy payloads support an **ICR (Infrared Cut Removal) mode**, which automatically removes the IR-cut filter under low-light conditions. This feature allows the EO camera to capture more infrared light, improving image brightness and visibility during nighttime operations. Combined with appropriate exposure and gain settings, ICR mode can significantly enhance camera performance in low-light.

**High Sensitivity mode** further improves image capture in extremely dark environments by increasing the camera's light sensitivity. This mode extends the allowable electronic gain range, enabling the camera to maintain image brightness in very low-light conditions while minimizing overexposure. It also enhances the visibility of dark areas and shadowed regions within the scene, allowing details that may be difficult to observe with the naked eye to be captured more clearly.

When both **High Sensitivity** mode and **ICR mode** are enabled (monochrome operation), the EO camera achieves its maximum low-light performance, with a minimum illumination level of up to 0.06 lux. This configuration allows the camera to capture usable imagery in extremely dark environments where visibility is severely limited.

{% hint style="info" %}
Note: This setting is applicable to the VIO, ZIO, and Orus-L payloads. The resulting low-light performance may vary between products due to differences in EO camera models and sensor characteristics.
{% endhint %}

{% stepper %}
{% step %}

### Open Camera Setting Menu

{% endstep %}

{% step %}

### Choose Device and navigate EO Camera

<figure><img src="/files/3N4Sw4CUResVbDzUnLLt" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Enable EO High Sensitivity

<figure><img src="/files/Exm9QFUUdWJgx2lWPwME" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Enable ICR Mode

<figure><img src="/files/tQP4v79LmFjtlGJHohNe" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

<figure><img src="/files/iz1bUiusBWGa8tg3pEhi" alt=""><figcaption><p><strong>Testing on VIO Payload</strong></p></figcaption></figure>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.gremsy.com/payloads/general/advanced-configuration/night-mode.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.