I recently purchased a very clean sl66 that I am very proud to own. The shutter release however, seams to have an issue. IT seems to require more force than "normal" to manually push the shutter release button to the point of being a hinderance in delivering a stable shot. I have connected a cable release and it works fine. I don't know if its a sticking issue due to lack of use , a lubrication issue or what. Basically once depressed it is slow to spring back as well. Have any of you had this experience and is there anything I can do short of getting it professionally repaired to help the situation. For what its worth the button seems to be seated inthe camera body securely but I notice that the release button is able to spin or be turned passed the lock or unlock detents. Thanks for your responses.