Bahtinov Focus Mask for Orion 115ED or Astro-Tech AT115EDT Telescope. 141mm I.D | eBay
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ZWO Astronomy Cameras - Lion Nebula - a very faint emission type nebula on the Cepheus/Lacerta border Equipment info: 🔭Telescope: Astro-Tech AT115EDT 📷Camera: #ZWO ASI2600MC Pro Mount: SkyWatcher EQ6-R Pro 🖼Image credit: