![Achromatic and Apochromatic Refractor Designs](http://starizona.com/cdn/shop/articles/refractor_scope_250x250_crop_center.jpg?v=1583025143)
Achromatic and Apochromatic Refractor Designs
Above: Optical layout of a typical refracting telescope This section details the optical design and inherent aberrations of refracting telescopes. For a more basic overview of this design please see theRefractors page. For a review of the optical design terms,...