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I used a six inch Meade for years where the secondary mirror sat on a glass disk and the had magical properties to correct the image.
I wonder say one stuck in a disk off glass and hang the seconary as with the meade...and if you do need a corrector plate where do you get that sort of glass..but I do wonder the effect on the image...I expect there are folk doing it if I look...theres always someone doing something like you think of doing☺
Alex
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