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Originally Posted by sejanus
hey guys out of curiousity, does a dobsonian of equal size to a SCT absolutely kill it optically? is the difference in brightness really big?
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That would depend on the quality of the optics as manufactured. Having said that, newtonian optics are easier to make to a high standard than sct optics which are more complex with more components and surfaces involved.
As for image brightness, I doubt you could pick a difference between a newt and an sct of equal aperture at the same magnification.