# Editing the Dynamic Zooms with the Function Editor

You can use the Function Editor to edit camera zooms that change over time. To edit dynamic zooming, you change the field of view (FOV) of the camera.

Let's say that you want your camera to repeat the same zoom changes over 60 frames. In the Camera View window, you can use the camera handle to change the zoom level, but you can not select exact FOV values with the handle. To do this, you must use the Function Editor.

To create precise camera zooms with the Function Editor:

1. Add a new camera element to your scene.

2. Activate the camera by selecting the camera from the Camera List toolbar button.

3. Select the camera element in the Timeline window.

4. In the Camera tab, select the Dynamic option for the FOV Type.

When you select the Dynamic option, you will be able to make the zoom level of the camera change throughout your scene.

5. Change the start frame and duration of the camera.

6. Select Window > Show Function Editor to display the Function Editor window.

7. Select FOV from the Function drop-list.

The Function Editor appears.

- The Y-axis (vertical axis) marks the angle of view that the camera has of the scene.
- The X-axis (horizontal axis) marks the frame number.

8. To change the angle of view of the camera, select the frame on the plotline where you want the zoom effect to change and add a keyframe.

You can then move this key point to the angle of view you want. The shape of the plotline identifies the speed of the change in zoom.

9. To change the speed of the zoom, you can manipulate the shape of the plotline using options in the Reshape menu.

See Also
Editing Functions in the Function Editor
Reshaping the Plotline in the Function Editor
Adding Motion Points to a Motion Path
Adding Cameras to a Scene
Changing the Start Frame and Duration of a Dynamic Camera