Checking Tach
Moderators: sky's the limit, sepia, Sulako, North Shore
Re: Checking Tach
No, something like a half inch length of black drinking straw should do it. It works if you shield the thing from the skylight at the sides with your hand, but that's a bit tedious.
DId you hear the one about the jurisprudence fetishist? He got off on a technicality.