I wanted to use some of my old glass on my brand new XH-1, which I loved until five minutes ago when I attacher my Pentax 85mm with an adapter and went to change the settings in the menu. Where is the "shoot without lens" option in the menu? It will not shoot otherwise! Or am I wrong? Part of my reason for buying this camera was IBIS for my old glass! Help! Please help me to fall in love with this camera again! Thanks!