17P/Holmes 2007-Dec-24 Jim Melka

The FOV is 8 X 5.5 degrees. I am very happy with the flat field using a Canon 20d body with Tamron 2X teleconverter and an 85mm f/1.8 lens. 90 45sec frames sigma combined with Images Plus 2.8. This time I locked the dec axis so I only needed to do an automatic translation alignment with IP. However, the deviation radius of the frames maxed out at 100.4 pixels!! I duct taped an 8x monocular to the mount to be a polar scope. It may need some adjusting. But I think I’m getting my money’s worth out of IP. Good seeing, Jim Melka

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