I have the Celestron 130 Eq, and my unit does not have a spherical mirror. If you have a spherical mirror, you must have a sub-aperture corrector lens in the focuser (Jones-Bird Newtonian). Otherwise, you will have spherical aberrations. My unit does not have this configuration. It is the same as my four other Sky-Watcher newts, just smaller.
Hi, My Astro master 130 is quite old, It does not have a lens in the focuser. But there is a blog post on the Celestron website from 2011 stating the mirror is spherical. Ill post the link in the description
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I have the Celestron 130 Eq, and my unit does not have a spherical mirror. If you have a spherical mirror, you must have a sub-aperture corrector lens in the focuser (Jones-Bird Newtonian). Otherwise, you will have spherical aberrations. My unit does not have this configuration. It is the same as my four other Sky-Watcher newts, just smaller.
Hi, My Astro master 130 is quite old, It does not have a lens in the focuser. But there is a blog post on the Celestron website from 2011 stating the mirror is spherical. Ill post the link in the description