Solarmax SM40 40mm Double Stack external etalon with T-Max Tuner.
Doublestack your PST to <0.5 Angstroms.
Never used, comes in own case.
Photos to follow later.
New SM 40 is around $729 if you can find stock, asking $640 ONO.
Can be picked up in Newcastle area or can post anywhere at cost.
Cheers
Arek
EDIT: Photos added.
http://flyer.smugmug.com/Other/Astro...N3/0/S/1-S.jpghttp://flyer.smugmug.com/Other/Astro...5B/0/S/3-S.jpghttp://flyer.smugmug.com/Other/Astro...Js/0/S/5-S.jpghttp://flyer.smugmug.com/Other/Astro...C5/0/S/4-S.jpg