Firstborn/Library/PackageCache/com.unity.cinemachine@2.8.9/Documentation~/CinemachineExternalCamera.md

Cinemachine External Camera

This component will expose a non-cinemachine camera to the cinemachine system, allowing it to participate in blends. Just add it as a component alongside an existing Unity Camera component. You will need to take steps (e.g. disabling the Camera component) to ensure that the Camera does not fight with the main Cinemachine Camera. This component is deprecated in favour of using a normal CinemachineVirtualCamera with Do Nothing in both Aim and Body.

Properties:

Property:	Function:
Look At	The object that the camera is looking at, if defined. This can be empty, but setting this will improve the quality of the blends to and from this camera.
Blend Hint	Hint for blending positions to and from this camera.