# Calibrating tracking camera doesn't work

Source: https://forum.modalai.com/topic/2620/calibrating-tracking-camera-doesn-t-work
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2
Posted: 2023-09-05 09:14:41 UTC by Gdanan
Replies: 1 · Views: 439

## Gdanan · 2023-09-05 09:14:41 UTC

Hey, I have some focus issues with my tracking camera, I'm trying to use the voxl-calibrate-camera tracking. But it constantly crashes the camera server for some reason although it succeeded in tracking the chessboard, The command I'm running is: voxl-calibrate-camera tracking -f -s 6x9 -l 0.025.

What am I doing wrong here?

![cameraCalibrate.png](https://forum.modalai.com/assets/uploads/files/1693905206075-cameracalibrate.png)

## Reply by Moderator (ModalAI staff) · 2023-09-05 19:04:59 UTC

@Gdanan Do you have other services running? Maybe try to disable unneeded services while calibrating?