WTD: Clarion/JPI TopSpeed C (for Psion SIBO SDK)

[Tony Duell]

> 
> 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.

As of coures are body caps..

> 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

Neat... Probably whicher and cheaper than buying a length of 1.25" brass 
rod, turning it to size, cutting yhe threads, etc. But not as much fun...

-tony