It's sold as a Newt version due to the very short body length, minimum backfocus requirement - compared with the very large body on the SCT Cass guiders.
I tested many OAG a few years ago and this one came out on top!
The oversized prism and adjustment set it apart from the Celestron/ Meade etc. It will easily fit any scope which has a 2" focuser and at the rear - your choice of connections.
Highly recommended.
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