Tele Vue Imaging System accessories are a line of interchangeable, matching products that facilitate astro-imaging with your telescope. Imaging System accessories were developed to meet the varied demands of astro imagers using our line of Imaging System ("is") APO refractor scopes: the NP-127is and NP-101is. The wide focuser openings of "is" scopes allows for critical illumination of imaging chips up to 50-mm diameter. An adapter allows reusability of virtually all of the Imaging System accessories on our 2" focuser scopes and those of other brands.
As you'll see in the accompanying table, the wide breadth of Imaging System accessories makes this a complete product line of optical components, focal path hardware, mount rings and focusing accessories.