Bronica top housing removal

[Nick R.]

Does anyone know how to remove the top plate on the Bronica RF? My viewfinder has some spots on the inside that are very annoying. I'd like to get the top off so I can clean them. I don't want to send the camera away for what should be a simple cleaning.

 

[sf]

My experience with removing housings and messing with the prisms and mirrors in there is really sour. So, I tend to fear even the possibility of opening the case. I'd call up Tamron and get help - they have been helpful with my issues lately.