Hi, 
without enabled camera record mode i can see blue rectangle what will be rendered. 
If i enable camera record mode and zoom it i thought red rectangle is the same. All my scene is still inside red rectangle. 
However if i render it to mp4 video then i can see that part of scene on the right side simply disappear (cropped or how to call it).
So my qestion is: am i able to see what will be rendered if i enable camera record mode and zoom it?