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Matsumoto designed the split Amici system , which was probably a precursor to his commercial system . Worth tracking down the original S and T Gleaning s article if you can. It will only add one extra reflection beyond a typical SCT.
You really need to use as little back focus as you can in the design as the SCT's start to go soft if you refocus them too far away from the design backfocus, which would defeat your planetary viewing criteria . I think that would negate Matsumot's commercial system .
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