I originally had a Moonlite focuser (tri focuser style) to marry the Moonlite filter slide. The Moonlite focuser has slowly become less buttery smooth than it was at the beginning.
The Moonlite focuser has bearings running directly on the anodized draw tube and over time the draw tube inevitably ends up with tram tracks dug into the tube. As a consequence, the focuser had developed a tendency to clunk slightly out of focus for some observers if the focus point coincided with a point where the scoring on the draw tube was at its worst. I could probably have replaced the draw tube, but I thought I might take the opportunity to try the Feathertouch focuser instead!
The Feathertouch draw tube rides on stainless steel rails and so I have my fingers crossed that it will be more long-lasting solution. Its feel is truly beautiful and smooth. It doesn’t get any better than this!
Peter has developed a way to couple the Moonlite filter slide with the Feathertouch focuser (there is apparently no solution otherwise commercially available to create this combination). So I can have my Christmas cake, and eat it!
