7x focal reducer, and Moonlite focuser on order. The big benefit of having a large aperture scope like this is that I can begin to image small galaxies and planetary nebulas that were just a bit too small on the 6” scope. I think the native 2800mm focal length might be a bit much for the CGX during long duration guiding, and I’ll only reserve that native length for bright planetary objects that don’t require quite as accurate tracking. 7x reducer is not only going to aid in imaging time, but also aid in keeping the mount accurate. Reducing down to F7 from F10 will enable me to image at twice the speed for the same signal to noise ratio. Moonlite has a low profile focuser that works in tandem with the EdgeHD 11”. I’m addressing the focuser with a Moonlite CHL 2.5” Large format Crayford Edge focuser.
The only remedy, is to lock the mirror down, and attach a new focuser to the back of the scope. As you focus to the inside and outside of the focus range, there is slop in the mechanics that cause the mirror to flop from side to side. Outside of their renowned optics, the focuser and mirror flop are two things the Edge scopes are burdened with that are less than stellar. Initially I only had a chance to do some quick visual work with it. For me, though, moving from a 6” RC to an 11” SCT is quite a jump.
#Edge hd optical telescope upgrade
They had been ready to upgrade to something even larger. I picked up this scope second hand from a person I work with. Introducing the EdgeHD 11” Schmidt Cassegrain from Celestron. I knew, once I upgraded from the Celestron AVX to a mount with more capacity, it was only a matter of time before a large aperture scope entered the picture. You might have seen photos of it pop up on some of my other equipment pages. This past holiday, I received a Celestron CGX for Christmas.
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