I feel the same way about the Paracorr. It's just "glued in" to the focuser. I never want to go back to the "going to lightspeed" view of space my scope had before.
There are two different versions of the Paracorr: a photographic version without a tunable top (which has a smaller diameter lens appropriate for imaging), and a visual/photographic version with a tunable top (needed to allow control of lens to eyepiece distance) and a larger lens (to prevent vignetting with eyepieces having large field stops).
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