Quote:
Originally Posted by Peter.M
I had a quick look at your full frame images and they have me really confused. To me it looks like differential flexture because the star profiles are the same across the entire frame, I am not familiar with the planewave scopes but whenever I have miscolimation the profiles vary across the frame and usually are better in the center. I would definitely try to take some unguided exposures and check the star profiles obviously guiding with an in guide chip any flex related issues should not be a worry. The only other option is the chip tilting in the focuser at low angles and there I would expect there to be out of focus images on one side and fine profiles on the other.
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thanks Peter. Yes, when the clouds clear my first thing to do will get a 5 sec, 10sec, 15 sec, etc unguided exposure and look at them.
thanks Guys about the filters. i only recently (few weeks) tightened them all up, but i will remove on and image through an empty slot.
Josh