To keep our quality high and make sure we delivery on time we only manufacture limited quantities of Apochromat Optical Tube Assemblies.
On any scope you can order either a polished brass or maple hardwood focuser backing plate
All scopes come with optical coatings applied on every element optimized for each glass type to maximize transmission and contrast.
Precision Applied Products 140 mm F-6
Apochromatic tube assembly. Made entirely in our shop with meticulous details. Our main focus is on how well we center the lenses compared to the mechanical axis. This is done to assure perfect collimation. The lenses are centered to within 2 microns of each other and the cell.