My Nauticam NA-EM5 housing's shutter lever doesn't return to it's original position after pressed sometimes. This more frequently happens when I depress the lever partially (half way to focus). Inside the housing I've noticed the spring loaded lever that pushes on the camera's shutter button doesn't move smoothly but the external shutter lever is smooth. Anyone else have this problem? I was thinking about putting some silicon liquid on the internal lever. Any recommended silicon that's safe for housing?
I take good care of my housing (rinse, soak after day's diving).