Way to get a wider angle with the camera?

I would like to test my scene with different scale.

Right now, the scene I created has some dimensions to it, but I would like to see how it would look if the place was scaled bigger, or alternatively, my camera smaller.

In fact I would be able to view it at different scale.
Imagine how a mouse and a human see things at different scale, I would like to alternate that in game.

What is the best babylonesque way to achieve that?

Thank you

camera.fov should do the trick.


Thanks! That did it