Having not posted in the forums (since I really don't know very much) I cannot access the NTP book. I recently retired and need to do something useful during the day and would like to start with the NTP book if it is still available.
My main hobby is Astrophotography and my second camera is a modified Canon 40D that could be put to use during daylight hours. I look forward to developing some skills with this forum and, hopefully, share the results.
Best wishes,
Charles