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Dean, both are very nice shots but "The Coathanger" aka Brocchi's Cluster is my favourite.
I have myself back into the unguided imaging grove with the Mach2. Unless I mis-configure my Sequence Generator Pro/PlateSolve2 profile again. ;-)
I couldn't be happier with the Mach2 and the software package. I have been using AP mounts for a long time and this mount/software package is the best by far.
I set up the mount and break it down for each session so, instead of doing an all sky APPM point map run I have just been doing a 3 line point map that covers the declination of the object for the night. For instance, if the object is at +20 declination I will set up APPM to map 10 points along each of +25, +20, and +15 declination. This turns out to be about 33 or 34 points taking into account the double mapping of points within the west side meridian limits I have set up. It takes about 20 to 30 minutes depending on how PlateSolve2 feels that night.
I suspect that I am taking more points than I need to but I want to make sure that the night is not wasted so I err on the side of caution.
Here are a couple of links to unguided images from the last two sessions:
The good folks at AP have really done a nice job with the Mach2.
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/