Quote:
Originally Posted by U.K.Cowboy
Interesting to hear you don't activate the tracking Eric. I guess you are running 100+fps with the ASI so only need a few secs of capture? I've recently got the QHY5L-ll mono which has the same chip as asi120mm and hope to take advantage of its larger fov compared to my dfk 21. Unfortunately my 5x powermate is producing f40ish with the QHY so looks like I will be using 3x barlow instead.
For sure AS!2 is great for aligning shifting images compared to registax which for me has proven a disaster with the Dob tracking.
Have you tried any Planetary imaging?
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The main reason for not activating automatic tracking (most of the time) is that the area where I set the scope is uneven. So it takes a while to get the scope levelled. I don't often have the time to do it (bad practice, I know
). As you say, I only capture a few seconds. I have done all sort of trials with different length of capture (up to 2000 frames on the Moon). It looks like the sweet spot for me is about 400-600 frames. Short enough to avoid major deviation and long enough to have plenty of frames to choose from.
I haven't been able to use the x5 powermate on the Moon yet; the seeing has never been good enough.
AS I am only new to AP, I don't have a huge experience in planetary. I managed a few acceptable Jupiter shots (see here:
http://www.iceinspace.com.au/forum/a...e.php?a=131303). But nothing compared to your pictures. I am keen to improve though.
BTW, do you have any focusing issue fitting a filter wheel on your dob?
Good luck with the new camera.
Eric