Quote:
Originally Posted by Atmos
Glad to hear that you're finally getting closer to "officially" starting your imaging runs  |
I know! Hilarious really how much work goes into setting up a precision instrument.
[QUOTE=Joshua Bunn;1184244]Good stuff Greg!
What did you do to correct the flexing?
I put some 1.5mm blue plastic spacers (the type used in construction you get from Bunnings) at each of the 4 corners. Then I pushed the camera in hard whilst I locked off the filter wheel. There is still a tiny flex that I expect to handle fully when a new 7 position filter wheel arrives. But at this stage its not worth chasing as I think I will go backward. Its like contracting. Sometimes there is a point on a job if go beyond you start going backwards! Knowing when to stop is important sometimes.
How long are your integrations? At the moment 5 minutes but I think now longer should not be a problem. It came over cloudy as I was testing so next clear night I will test, 10, 15, 20 minutes. I might also do a "quick" 300 point T-Point model.
That new accurate polar alignment feature in T-Point is pretty cool The model said good enough but in the adjustment section it said to lower the axis by 1.3 tics. The accurate polar alignment though made me raise it about 2.5 tics. I then got even rounder stars. How about that.
I may play with the refine curve feature of Pempro but last time I managed to get the refined curve uploaded when I had just done the 2nd curve data with the PEC turned on but not the next day trying to load a saved curve. Pempro is a bit awkward sometimes. Its not clear how to load and save things and reload. It seems more oriented to playing back the curve in real time but that would mean turning on that program everytime you wanted to image. Unless I am misunderstanding it.
My current curve is 5th order and the RMS value dropped a fair bit. Last time I used just the linear curve and the refined curve was adding the 2 curves. I am getting better results with the new curve than the older refined curve.
Greg.