The FOV aspect ratio of SceneCapture2D is 1: 1. Is there a way to change that?

sceneCapture2D_2-768x570
As shown in the figure above, Camera does not have a field to set the aspect ratio of FOV of SceneCapture2D, so where should I set it?
If you don’t have one, please let me know the C ++ code that allows you to set the aspect ratio.