<p>hi guys, your help is really great. so i opened the view finder from front and basically just took away the front cover to reveal the mechanical parts. i played around with the cog wheel of both aperture and shutter speed and what do you know i can see the +- signal lights flickering now even to a point i get a right exposure shown. so possibly its just a calibration or mechanical issues where the aperture wheel was only out of range. im asking myself now if i just inserted the lens wrong which seems unlikely? but @Christoper your comment about the twist makes me wonder though - maybe i have missed that. can you elaborate. </p>