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Hi Paul,
Thanks for your comments.
Currently my camera has a 2" standard nosepiece which is bolted onto the camera body with 4 screws. That goes directly into the Baader Click Lock extension tube, which goes directly into the 2" FT Focuser (which has a twist locking compression ring. I was just asking about the possibility of using a Cannon EOS adapter on the camera as a way of nailing the distance to the potential field flattener (also using an EOS adapter). Seems from what you are saying that this would not be firm enough, so I will forget that future solution.
Last night proved frustrating to say the least. I not sure if I've made much progress but did 8 T-Point runs of 21 points, then after the 6th run I accidentally crashed pretty hard right into the counter weight and gave it a huge knock. Yikes. That was around 1 am. I ran T-point 2 more times and got the results in # 8.
The first time I tried to follow your advice exactly. I went due West (cannot go due east very much) to around 50-60 degrees elevation and collected 21 points in a small area. This proved useless as the PA dialog info said not enough points to refine model, collect more points.....so I collected another 15 or so in a pie shaped wedge towards directly overhead, keeping the scope on the same side of the mount. To make a long story shorter on subsequent runs I slightly enlarged the pie shaped wedge of stars to 21 and used this over and again. I got the following super model results, (minus run 4 because I forgot to write the results down):
1. MA = 56.7 Tighten E 1.3 tics
ME = 0.0 Raise 1.3 tics
2. MA = 43.3 Tighten E .9 tics
Raise 1.3 tics
3. MA = 25.7 Tighten E .5 tics
ME = 0 Raise 1.3 tics
4. no data
5. MA = 26.5 Tighten E .5 tics
ME = 0 Raise 1.3 tics
6. MA = 0.0 no adj indicated
ME = 0 Raise 1.3 tics
Walked into mount counter weight!!
7. MA = ??? Tighten E 2.3 tics
ME = ??? Lower 1.3 tics
8. MA = 0.0 no adj
ME = 0.0 Raise 1.3 tics
I'm a bit onfused about these numbers. It sems as if MA was improving a little with each of the first 6 runs, but every time I raised the mount ME wasn't changing. Until I walked into the mount I raised it 1.3 at least 5 times. Could that be correct? Also, I tend not to believe the final result of MA=0.0 even though confidence was listec as "high."
I've attached pictures of the area of the sky I collected the points in, and also photos of the terms and #8 PA recommendations.
Sorry this is so long, but appreciate further help!!
Peter
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