Convert Isometric camera to perspective camera

mayaphenomenal

Hey Guys
I want to going from Isometric to Perspective,
my question is how my main camera in unity can do that like the video I sent below.
in the video is in viewport but I want to mimic this with Main Camera.

Thank You in Advance

https://www.youtube.com/watch?v=NExBHqwbWSk

Tryall

If you select your Main Camera (the one in the scene). You have an option to switch from the perspective view to the Orthographic view (in the inspector tab, it's should be on the right side of your screen). 

The Orthographic view is the equivalent to the one you called "Isometric view".