However great the tracking of the HD200C German Equatorial Mount and the chosen "autoguiding" CCD camera work together or separately, - the system will fail to track properly if it is not in "Polar Alignment". The best method to get a proper Polar Alignment is "The Drift Method". It begins with a rough alignment obtained with a "Polar Alignment Scope". The same alignment scope is used again to fine tune the polar alignment it first produced. This is an iterative process where each subsequent iteration improves upon the results of the previous iteration. Thus a good alignment scope is a must. My telescopes come with an 8 X 50 illuminated reticle Polar Alignment Scope from Parallax Instruments.
Most Research Grade Telescopes are used while connected to a computer, and the astronomer sees the image on his computer's monitor. However, if the telescope is to be used to train budding Astronomers, - manual operation is a must.  To this end, the telescope is equipped with a set of TeleView Eyepieces and Barlow lenses that cover the bottom, middle, and top focal length of all four telescope ranges.
All in all, I produce six "Acubright" 10" Teaching Telescope models, and fifteen "Acubright" 12" Comet Chaser Telescope models. These are broken down into tabular form according to their features on the next page.  Please note that all the McKerron-Newtonian types are guaranteed to have a Total System Wavefront Error of 1/8 Peak to Valley at 550 nm or less, while all the Standard-Newtonian types are gauranteed to have a Total System Wavefront Error of 1/12 Peak to Valley at 550 nm or less. The former is 2X better than "Diffraction Limited Optics" while the latter is 3X better than "Diffraction Limited Optics", - as total systems.