---
title: "CameraTrackingSource"
description: "API documentation for CameraTrackingSource"
url: https://developer.disguise.one/python-api/docs/cameratrackingsource/
---

# CameraTrackingSource

Base class (inherits properties and methods): _[ObjectTrackingSource](/python-api/docs/objecttrackingsource#objecttrackingsource)_

Subclasses: _[AxisCameraTrackingSource](/python-api/docs/axiscameratrackingsource#axiscameratrackingsource)_, _[CompositeCameraTrackingSource](/python-api/docs/compositecameratrackingsource#compositecameratrackingsource)_, _[GeneratedCameraTrackingSource](/python-api/docs/generatedcameratrackingsource#generatedcameratrackingsource)_

## Properties

#### **aperture** : _float_ _(Read-Only)_

Aperture (f-stop) value

_UserName: Aperture_

#### **aspectRatio** : _float_ _(Read-Only)_

Raw aspect ratio intrinsic value (w / h)

_UserName: Aspect ratio intrinsic_

#### **centerShift** : _[Vec2](/python-api/docs/vec2#vec2)_ _(Read-Only)_

Raw center shift intrinsic value (mm)

_UserName: Center shift intrinsic_

#### **fieldOfViewH** : _float_ _(Read-Only)_

Raw horizontal FOV intrinsic value (degrees)

_UserName: Horizontal FOV intrinsic_

#### **fieldOfViewV** : _float_ _(Read-Only)_

Raw vertical FOV intrinsic value (degrees)

_UserName: Vertical FOV intrinsic_

#### **focalLength** : _float_ _(Read-Only)_

Raw focal length intrinsic value (mm)

_UserName: Focal length intrinsic_

#### **focusDistance** : _float_ _(Read-Only)_

Focus distance value (m)

_UserName: Focus distance_

#### **focusEncoder** : _float_ _(Read-Only)_

Raw focus encoder value

_UserName: Focus encoder_

#### **k1k2k3** : _[Vec](/python-api/docs/vec#vec)_ _(Read-Only)_

Raw lens distortion intrinsic values

_UserName: k1, k2, k3 intrinsic_

#### **lensDelayOffset** : _float_

Time in seconds between the spatial tracking data arriving and the lens data arriving.  
If negative lens data arrives before the spatial frame.  
If positive, lens data arrives after the spatial frame.

_Category: Delays  
UserName: Lens delay offset (s)_

#### **lockedFocusValue** : _float_

#### **lockedZoomValue** : _float_

#### **sensorSize** : _[Vec2](/python-api/docs/vec2#vec2)_ _(Read-Only)_

Raw sensor size intrinsic value (mm)

_UserName: Sensor size intrinsic_

#### **zoomEncoder** : _float_ _(Read-Only)_

Raw zoom encoder value

_UserName: Zoom encoder_

## Methods

#### **getFocusEncoderHint**(self) -> _str_

#### **getZoomEncoderHint**(self) -> _str_

#### **lockFocusEncoderValue**(self, lock: _bool_)

#### **lockZoomEncoderValue**(self, lock: _bool_)