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I’m very much looking forward to seeing this come together. A cassegrain will be one of my retirement projects so I’ll be interested to learn here. A couple of questions to start with:
I’m assuming you prefer the DK because the classical cassegrain has the complexity of the hyperboloid secondary and simple optics are easier to build to a high standard?
I’ve read some say the spherical secondary on the DK does not need collimating, although it must be well centred. Is that true?
Rod.
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