The height of your camera determines the height you are viewing your model from in a 3D camera view. A positive camera height lets you look down on your model, while a negative camera height lets you look up at your model. A camera height of 0 would be like standing on the ground and looking at your model.
The default camera height in the 3D Perspective view is 6’-6”. In the 3D Overview, the camera height is set to approximately 32’.
To change the camera height:
With the 3D camera view displayed, right-click in the drawing window and select Camera Properties.
In the Camera Properties dialog, type the height you want in the Camera Height edit box, or use the arrows to scroll up or down through a list of values.
Click Apply to see the change.
If the view is acceptable, click OK.