Hi,
I just purchased an Orion 80mm ED. This is my first refractor. I was surprised to find that I could not bring the focus tube out far enough to focus for straight-through viewing. It will focus with a diagonal. Will I have to use a diagonal for my CCD, too?
Mark J
I just purchased an Orion 80mm ED. This is my first refractor. I was surprised to find that I could not bring the focus tube out far enough to focus for straight-through viewing. It will focus with a diagonal. Will I have to use a diagonal for my CCD, too?
Mark J
