1.25" screw on fitting, as new, and complete as supplied from Baader.
Used sparingly in front of my ST2000XCM.
AU$230 plus postage, which I guess will be about $10.
Contact via PM or off group at g.beal@xnet.co.nz
Hi Geoff,
in principle, anything is possible, but the filter is really designed for CCD imaging, and as such fits between the scope and the CCD. For the likes of the DSI cameras, or the ST2000/M716 style it is superb. I have gone to a 2" filter hence this one for sale.
Gary