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Hi,
I've been seriously considering getting the 12 f4 OTA from andrews.
will have to call them for the weight and secondary size.
but wouldnt a 2" coma corrector suffice as if you're using a dslr, the coma corrector would be only an inch or so from the ccd chip of the dslr or the focal plane, and at that point, the light cone wouldn't be over 2". just guessing.
I wonder if it would be possible to cut out sections of the OTA tube to make it lighter, but still retain stiffness. anyone done anything like this?
other option is to buy just the mirror and build the rest.
is it possible to get a decent mirror cell for a 12"? any recommendations?
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