|
Hi Charles,
I've been using the ONAG for a few years now. I've actually got two - one on each of my TECs. As I write this I'm imaging NGC1532 using FocusLock on both scopes. I have not focused once the entire evening and the temperature has changed from 21.7 c to 20.7. Only 1 degree but you can see how many times the focus was automatically adjusted to stay well withing the CFZ. I started out with 3 x 480 sec and then 4 x 600 sec subs. My FWHM values from CCDInspector are: 1.84, 1.85 2.06, 1.87, 1.94, 2.28 even though I started out at ca 75 degrees and am now at 63 degrees altitude. Pretty cool!
Peter
|