Teleskop Service 2" Filter Drawer System.
http://www.optcorp.com/teleskop-serv...em-tsfek2.html
Works great with the slimline OAG I am also selling, I also used it with a hyperstar, worked a treat.
Comes with Extra filter Drawer, (
http://www.optcorp.com/teleskop-serv...er-system.html)
total RRP is USD$150 (AUD$195)
Sell for $120 + post.
From the Blurb:
The
Teleskop Service 2" Single Filter Drawer System is the shortest filter quick changer that we know.
Uses only 15mm optical length!
The
Teleskop Service 2" Single Filter Drawer System allows you to switch between filters within a few seconds without having to refocus after the filter change!
Very low profile for best possible illumination and no limit to the number of different filters you can use.