# Parameter `CamZoomSize`
Default Value: `0`

!!! Warning
    This is an **Expert Parameter**! Only change it if you understand what it does!

!!! Note
    This parameter can also be set on the Reference Image configuration page!

!!! Note
    After changing this parameter you need to update your reference image and alignment markers!

`CamZoomSize` only applies when `Zoom` is enabled.
