Televue Paracorr
All Newtonians exhibit coma to some extent. The “faster” the focal ratio, the more coma. To combat coma, Tele Vue has produced the premier coma corrector, the Paracorr. Located in a small town in upstate New York, Tele Vue has been producing world-renowned, quality optics for over thirty years. If you want the best, you want Tele Vue.