Quote:I thank you all for the great info and help. I have ordered both of the products that I need: the Parfocalizing rings from farpoint and the ATCC from astronomics. Hopefully I will have a clear night sometime so I can take it out and use it!! One more question, can testing the ATCC and setting the Parfocalizing rings be done during the day time?
Johnny FS152 15" Obsession Classic w/ 14.5" f/4.65 Zambuto
Quote:Alright. So I checked out the coma corrector a couple of minutes ago and it looked great on a telephone pole at a good distance away. I tried to focus on a hill way beyond the pole in the backround and I couldn't get it to focus. Any suggestions? And because I cant get it to focus on the hill will it not focus on stars/deep sky objects at night?
My eyepieces are made from the waste product of exploding stars.
10XTi 102XLT ST80A(2" Focuser); President, Eypieces Anonymous, Denver Chapter (Hello, I'm an eyepiece junky, what's your excuse?)
DAS Dark Site
Quote:Some possible cures:1.mount the primary mirror farther forward (this may be doable, but often requires counterweights be added to the bottom of the scope)2.lower-profile focuser3.re-mount focuser 1/2" lower by using other side of tube and simply rotating around. This may require significant re-working to finder, altitude trunnions, etc. But all it takes is time and a hole saw.4.If the focuser drawtube bottoms out on the focuser and there is still a centimeter or so of drawtube above the focuser body, the drawtube might be easily trimmed shorter to allow more inward travel. This might entail cutting a slot in the focuser body to allow the setscrew to go lower than the top of the focuser. On my first Moonlite, the drawtube's minimum height was actually below the top of the focuser.
Quote:Be reassured, I also found it a pain to get this coma corrector working...If the coma corrector and extensions are fully sunk into the drawer tube to the shoulder of the supplied visual adapter then I would only expect focus to move in by 10mm or so. It would be worth checking to see how far the focus has actually moved, by trying to focus on closer objects. This will given some idea of how much adjustment you need and what approach to take.Good luck!