[Eric Hahl]

Originally Posted by Pazuzu

https://www.cloudynights.com/topic/684309-help-me-id-my-focuser/

Based on that thread, it's a Sky Watcher's 150 Evostar focuser. 2 inch, so less bulky than the (4 inch?) that's on your tube now, but really, unless you're doing old school film work with big slides, who really needs a 4 inch focuser these days?

I was looking for something to put on my Vixen 102M which is a 113mm ID tube, this won't work without some minimal machining.

Thanks Mike. I'll pass. I need the bigger focuser as my flatener is 92mm. Hope to get a big chip camera some day and the bigger focuser helps support the weight of the filter wheel and camera better.