View Full Version here: : Brands/Manufacturers of secondary mirror gear
pmrid
14-10-2014, 05:31 PM
I'm planning on replacing the secondary mirror holder (and possibly the spider too if it is necessary). It's a sizeable secondary (3" on the short axis) so the holder needs to be reasonably solid. It's beyond my machining tools and abilities so I'm going to have to buy one. I was wondering if anyone had any particular brands/manufacturers you could recommend.
Peter
barx1963
14-10-2014, 06:42 PM
Peter
I have purchased and used 2 Astrosystems holders and spiders. See http://astrosystems.biz/sechold.htm
I have been happy with them and actually find the 4 collimation points easier to use than a 3 point system. I believe Peter uses these in his SDM's.
Cheers
Malcolm
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