---
title: "Check camera lens focus"
canonical: "https://help.vicon.com/space/Vantage/15053180/Check%20camera%20lens%20focus"
format: markdown
---
You can check the focus of your camera in your Vicon application software as you adjust it. To optimize your focusing, adjust your camera settings to get clear, bright images of the markers.

The following topics provide a summary of the procedure in each software application:

> Macro (toc)

For further details, see your Vicon application software documentation.

## Check camera lens focus in Vicon Shogun Live

You can check the image of the markers from the camera that you are focusing in real time in Shogun Live.


    **To adjust camera settings for checking camera focus in Shogun Live:**


1. In Shogun Live, on the **System** tab, ensure the **Cameras** section is expanded and click on the relevant camera.
2. In the **Optical Mode** section below, click in the **Grayscale Mode** list and select **All**.
3. Ensure the **Strobe Intensity** slider is set to its maximum level (1.0).
4. In the **Workspace** on the right, set the view to **Cameras**.
5. Right-click and drag to zoom in on a target marker pair.
6. If the image of the markers is not bright enough to allow confidence in the level of focus achieved, increase the intensity of the grayscale from the camera. To do this, in the **Optical Mode** section, click the **Gain** list and select a level above 1.
7. In the **Cameras** view, observe the sharpness of the image of the two markers.
8. After focusing the lens, return Shogun to its default capture settings (above the **General** section, click **Set to Defaults**).

## Check camera lens focus in Vicon Nexus and Vicon Tracker

You can check the image of the markers from the camera you are focusing in real time in Vicon Nexus and Vicon Tracker.


    **To adjust camera settings for checking camera focus in Nexus:**


1. In the **View** pane, select the **Camera** view type.
2. In the **Resources** pane, ensure **Live** mode is activated (ie that **Connected** is displayed).
3. On the **System** tab, expand the **ViconCameras** node and select the required Vantagecamera.
4. In the **Properties** pane at the bottom of the **System Resources** tab, go to the **Settings** section and set **Grayscale Mode** to **All**.
5. Right-click and drag in the **Camera** view pane to zoom in on the target marker pair.
6. If the image of the markers is not bright enough to allow confidence in the level of focus achieved, increase the intensity of the grayscale from the camera. To do this, in the **Properties** pane, ensure **Advanced** properties are displayed and in the **Settings** section, increase the value for **Gain** to a level above x1.
7. In the **Camera** view pane, observe the sharpness of the image of the markers.
8. After focusing the lens, return the Vicon application software to its default capture settings. In the **Properties** pane at the bottom of the **System Resources** tab, set **Grayscale Mode** to **Auto**.