"Robert Geake" <robert@theDOGgeakes.co.uk> wrote:
Erm, is this your OMC 140 we're talking about?
If it is, then I'd advise a filter on the intake (which, from a
practical point of view, probably means blowing into the focusser). I
tried sucking through the focusser and blowing without a filter on
mine, but both led to a few new bits of dust inside.
I've been meaning to get round to building something like this:
You are being watched. This gives you power.