Svbony 2" Tele-Extender 75mm or 90mm with Protective Ring Astrophotography Mounting --The connection between phone eyepiece

--The connection between phone eyepiece and cell phone adapter are covered with EVA material

Due to our special coating technique the filters do not degrade when getting older

adjust them in the same frequency

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Svbony 2" Tele-Extender 75mm or 90mm with Protective Ring Astrophotography Mounting --The connection between phone eyepieceSvbony 2" Tele Extender with Protective Ring (75mm & 90mm) The Svbony 2" Tele Extender is available in both 75mm and 90mm lengths, offering flexibility for extending your eyepiece or telescope accessories. Built from high quality anodized aluminum, these extenders ensure durability and precise focus adjustments. Each extender features an M48*0. 75 thread and includes a protective ring for secure and safe connections. Package detail 1 piece 2"