bought this from a foum member about 2 months ago but have since moved to a Baader clicklock diagonal which I prefer, so moving this one.
Originally the diagonal came with a screw type nose piece for screwing into a SCT visual back. I've since added an option 2" smooth nosepiece for visual backs like the Baader click lock which have a clamping action rather than a thread for screwing in.
All of it for $110 including Postage to anywhere in Aus.