Amazon.com : Celestron 52268 C90 Mak Spotting Scope (Black) & Zoom Eyepiece for Telescope - Versatile 8mm-24mm Zoom for Low Power and High Power Viewing - Works with Any Telescope That Accepts
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Celestron C90 Mak Spotting Scope 52268 B&H Photo Video
Celestron 93635-A T-Adapter for NexStar 4, C90 Mak and C130 Mak | Walmart Canada