---
title: "Calibrate selected cameras"
canonical: "https://help.vicon.com/space/Evoke17/10814391/Calibrate%20selected%20cameras"
format: markdown
---
In addition to performing a full system calibration (see [Calibrating cameras](https://vicon-help.atlassian.net/wiki/spaces/Evoke17/pages/10817905)), you can calibrate or re-calibrate a single camera, or a subset of cameras, without having to re-calibrate the whole system.

This enables you to add cameras to your system, or move calibrated cameras, and calibrate with a shorter wand wave, saving the time it takes to perform a longer wand wave for all the cameras.


    **To calibrate ****selected cameras****:**


1. With the moved or additional camera(s) positioned in the volume, in the **System** panel, from the **Vicon Cameras** list, select the relevant camera(s). These cameras may be flagged as Uncalibrated (> Macro (inline-media-image)

) if they are new.
  If you are not sure if any cameras need to be re-calibrated, look at the System Health Report (for information, see [Understand the System Health Report](https://vicon-help.atlassian.net/wiki/spaces/Evoke17/pages/10816242)).
2. In the **Camera Calibration** panel, in the **Masking** section, click **Selected**. The camera masking is updated to include the new or moved camera(s).
3. In the **System** tree, ensure the relevant camera(s) is still selected.
4. In the **Wand Wave** section:
  1. To ensure that only the wand wave for the selected camera(s) is required to meet the Auto Stop Minimum Frames value, make sure **Auto Stop** is selected.
  2. Click **Selected**.
5. In the volume, ensure that the person waving the wand does not stand too close to the new or moved camera, so that the wave can be captured by both the directly affected camera and the adjacent cameras.
  During calibration, the selected camera is at the top of the Wand Count list until its wave is completed, when the list returns to the usual (device number) order.
  Calibration takes noticeably less time than the original full system calibration.
  When calibration is complete, in the **System** tree, the relevant camera is flagged as connected and calibrated, with no other icons (> Macro (inline-media-image)

).