#39 is very nice! Well done!
Now that you removed the "J" and "S" I don't think we need the "C" in there. Can you close the "C"? Then remove the aperture from the "C" and place it inside the lens.
I like the inside of this, but simplified to match the rest of the logo.
http://4.bp.blogspot.com/-7kwezw8u5T8/UVHgDuWaqvI/AAAAAAAAAfE/uzpCkwDzrSs/s1600/13599583-camera-shutter-isolated-over-white-background-vector-illustration.jpg