(Click to enlarge)
If you image in the Southeast USA then you will have to deal with dew - in my case the primary of my 8 inch f/4 Newtonian would start to dew up about midway through the night! I made some very low heat dew pads to put behind the primary to barely keep it above the dew point. This image was a test to see if this injection of heat would affect image quality. As far as I can tell it isn't. To sharpen the image some more I applied deconvolution as well.