Mamiya RB Prism Finder Model 2 for RB67 Professional Film Camera

hello this is the Mamiya RB 67 and this is a medium format camera and there was always an option on this camera to change the viewfinder as you can see this one comes with the pop-up viewfinder and I'm gonna show you how this works and you can actually change out the viewfinder to a prism finder which is like this this is the Mamiya this is the RB 67 and I understand this works in the RZ 67 viewfinder and what happens is this takes the place of this and goes on top you can see and our explain the differences the finder viewfinder that comes with the camera is a waist level finder you you basically look into this and there is a little button here don't ya you can see it right here there's a little button in here and what happens is you push the button and the magnifying glass comes out and you can see your scene I'll give a demonstration of this and what happens is you look through the v