Part of a recent purchase. I already have a set, so they are looking for a new home in a 2" newtonian reflector focusser.
2" BLACKCAT XL Cheshire
2" INFINITY XL Autocollimator
They are in good condition - a few marks on the body, but nowhere that matters. The lip that sits on the focusser draw tube is pristine. The reflective ring in the Cheshire and the mirror in the Autocollimator are unmarked. Original endcaps for each.
I have used them both and they are working just fine - up to Jim Fly's quality standards.
(Be aware that the BLACKCAT body is Delrin which expands considerably more than metal in the heat, as I discovered in 30+ deg heat last summer. If the BLACKCAT is a snug fit in the focusser in cooler conditions, it may not drop all the way in, in hotter conditions. I found that mine would only go about 2cm into the focusser. But it still sat quite square and I could collimate successfully. No problem now that we are back to 20 deg and below. I expect this example of the BLACKCAT will behave the same?)
Also supplied is the original instruction and maintenance guides and the spare Autocollimator set-screw and hex key wrench.
$125 plus pack&post or pickup in Melbourne.
PM me please. Thanks for looking
Eric