Quote:
Originally Posted by Peter Ward
Que? Can't see this myself.
Stars at the top of frame are essentially perfect, though I can see some elongation on the lower edge (may be a slight lack of CCD orthogonality  ) but the phrase "being very picky" comes to mind.
Very tidy image just the same  |
Well, you are right! Now I don't see it. I thought I did. Anyway, I put the full sized version in CCDInspector and it does show that the aspect is not as good along the bottom of the frame compared to the top. The overall curve map is odd looking but this is not a fair test given the galaxy takes so much of the field.
Peter