On Mon, 20 Sep 2010, Tony Duell wrote:
The only problem was, I didn't have an C mount
lens caps. And they seem
to be very hard to get. In the end, I bought some brass rod and cut the
theads msyelf (32tpi is trivial to cut on a lathe with an 8 tpi leadscrew
:-)).
If you are looking for C-mount rear lens caps, they are,
indeed hard to find.
BUT, eBay has a lot of cheap 5mm C-mount extension tubes
("C-mount to CS-mount adapter") Put a 1" diameter thin disk
(such as, or thinner than, a USA quarter) into one of the
extension tubes, and you have a C-mount rear lens cap,
or C-mount body cap