Accessory Tele Vue Large Field Corrector, NP101/NP101is/NP127is Tele Vue · Large Field Corrector, NP101/NP101is/NP127is Key specifications Accessory typeFlattener/Reducer All specifications Compatible withNP101, NP101is, NP127is About Large field corrector for NP101, NP101is, NP127is telescopes