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Something to bear in mind. With a refractor, reflections from any part of the tube could make it to the eyepiece so baffling is very important.
With a reflector, there isn't much of the tube that can be seen from the focuser. At the top end there is what can be directly seen, and at the bottom end only what gets reflected by the secondary. Light hitting any other part of the tube isn't going to make it to the eyepiece unless scattered off a dusty mirror etc and could be seen as inconsequential.
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