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Powermate - 80mm refractor
I'm thinking of getting a 4x TV Powermate for use on my 80mm f6.3 refractor. Is there a downside to this for DSLR photography - planetary at this stage.
Saturn and Mars are quite small of course without additional magnification. I'm wondering if there is a significant advantage in using a Powermate. Obviously a bigger telescope is probably the answer, but for the time being it's 80mm.
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