A Camera component for Unity which can blend between two positions (for now only the same type of projection will work, no mixing between ortho and non-ortho cameras)

MixableCamera.cs

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(Camera))]
public class MixableCamera : MonoBehaviour {

	public Camera fromCamera, toCamera;
	public float mixPosition = 0f;
	public float mixSpeed = 0f;

	void OnPreCull() {
		// OnPreCull is only called for components attached to cameras
		if((fromCamera != null) && (toCamera != null)) {
			transform.position = Vector3.Lerp(fromCamera.transform.position, toCamera.transform.position, mixPosition);
			transform.rotation = Quaternion.Lerp(fromCamera.transform.rotation, toCamera.transform.rotation, mixPosition);
			//transform.localScale = Vector3.Lerp(fromCamera.transform.localScale, toCamera.transform.localScale, mixPosition);
			camera.farClipPlane = Mathf.Lerp(fromCamera.farClipPlane, toCamera.farClipPlane, mixPosition);
			camera.nearClipPlane = Mathf.Lerp(fromCamera.nearClipPlane, toCamera.nearClipPlane, mixPosition);
			if(toCamera.isOrthoGraphic) {
				camera.orthographicSize = Mathf.Lerp(fromCamera.orthographicSize, toCamera.orthographicSize, mixPosition);
			} else {
				camera.fieldOfView = Mathf.Lerp(fromCamera.fieldOfView, toCamera.fieldOfView, mixPosition);
			}
			camera.rect = RectAddons.Lerp(fromCamera.rect, toCamera.rect, mixPosition);
			//camera.pixelRect = RectAddons.Lerp(fromCamera.pixelRect, toCamera.pixelRect, mixPosition);
		} else if(fromCamera != null) {
			transform.position = fromCamera.transform.position;
			transform.rotation = fromCamera.transform.rotation;
			camera.CopyFrom(fromCamera);
		} else if(toCamera != null) {
			transform.position = toCamera.transform.position;
			transform.rotation = toCamera.transform.rotation;
			camera.CopyFrom(toCamera);
		}

		mixPosition = Mathf.Clamp(mixPosition + mixSpeed * Time.deltaTime, 0f, 1f);
	}
}