Hi Folks.
Back in the late 60s I bought a cable release called Prontor, about 18 inches long. After many years the cable and its action got a little stiff. The clear vinyl coating got yellow, brittle, and it finally cracked. I carefully scored the brittle coating with an Exacto knife and peeled it away. Then I soaked the fabric with a silicone treatment. The release began working smoothly again, and I am still using it after almost 40 years. I probably could have put another clear sheath over the fabric by using clear heat shrink tubing, but I like it better without it. It is more flexible. Seems like the cable was expensive even in the 60s, but I would buy another if mine failed now, and I could find one. It fits really nicely in the fingers, and the lock is the latch button type, not the screw down type.
I wonder if anyone else has used the Prontor release. I have not known many who had them.
Henry in Atlanta