Thanks George. I have mine set up after the filters. I found focusing the guide cam to be very difficult but the best solution so far was to calibrate a dark and it really eliminates most of the bad pixels because Maxim kep finding them instead of the stars. Once I did that it worked. I also use the Sky and definitely looked for suitable guide stars within my FOV. On Apr 21, 2013, at 1:36 PM, George Kolb <geokolb@xxxxxxxxx> wrote: > Albert, > > I remember when I used to use an OAG on my Meade 10" SCT and how difficult it > was to find a suitable guide star. I guess a little planning ahead of time > might assist in determining if a suitable star exists in the FOV of your > potential image. Are you picking off the guide star before or after the LRGB > filters. > > Very nice image. Crisp with good color. > > Thanks, George > > Sent from my iPad > > On Apr 21, 2013, at 12:22 PM, Albert Barr <ajbarr@xxxxxx> wrote: > >> Last night I spent several hours tinkering with my new OAG and Lodestar >> guide cam. It's a whole different ball game and very difficult to set up. >> Maxim could not find decent guide stars and kept going to pixels instead. A >> friend of mine suggested doing dark calibration on the guider image. I did >> that and it seemed to work ok. So by 11 PM I noticed M13 was high enough to >> image and I put an hour and 15 minutes of RGB, all unbinned on it. I did all >> 300 second exposures. All the subs looked perfect and so far I think this is >> probably my nicest image with the Edge 8, which has been very frustrating to >> use ever since I got it. This image was fully calibrated and post processed >> in PixInsight with some Photoshop. Despite the moon, background gradients >> were pretty minimal. Here's the link: >> >> Albert >> >> >> http://www.flickr.com/photos/49526053@N04/8668562143/in/photostream/lightbox/ >> -- >> See message header for info on list archives or unsubscribing, and please >> send personal replies to the author, not the list. >> > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.