Wow.... you manually rotated the camera? Interesting. But it is a great image! Very nicely done including the post processing.?
?
What a number of guys are doing, including myself starting this summer, is to take images where rotation isn't an issue (or if it happens faster to take shorter ones). So just about anywhere in the sky 10 secs is good. As I'm sure you know it can be much longer say to the east or west. A technique that is also used is referred to as Lucky imaging. Because the cameras are soooo sensitive AND have extremely low read noise one can take very short exposures w/o jeopardizing the S/N, then stack (I too use LiveStack in SharpCap).?
?
With lucky imaging the goal is to capture images when the seeing happens to have settled down - i.e. you get lucky. To accomplish this you use time frames that are 3 seconds or lower (the longer it is - the less likely the seeing is stable for that period of time). Then use the "Filter FWHM" to filter out the ones that are above a certain level. If you have some patience you can adjust it so that you filter out maybe 20 - 25% of the images only keep the better ones.?
?
As Mickey points out there is a field rotator available as well. I couldn't use it because I'm already at shorter tube lengths and adding more backfocus to the camera would mean i'd have to shorten them even more. I'm fine just doing short exposures.?
?
Gary?
