Increase Field of View without move some objects

Hi all, I have an orthographic camera in my scene.

I’d like to change dynamically the Filed of View of the camera, but some object should remain in their position, like all the GUI elements do.

So for example, if an object is on the top-left corner, when I change the Field of View of the camera, he should keep stay in the top left corner, without been resized or moved…

I don’t know if a second camera is needed, and where I should put it, with which settings…

Any hints? Thank u!

Yes use a second camera to display the other objects. Put the objects that you don’t want to be resized, into a layer. On your second camera under the culling settings, only have that layer be checked. On your first camera uncheck that layer in the culling settings.