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Mounting an 8" dobsonian on an EQ mount
I was wondering whether anyone has any experience with mounting a 8" dobsonian on an eq mount to use for astrophotography? At 8kg for the tube it's well within the payload capacity of a mount like the NEQ6/EQ6R.
The long length may present some issues though. Firstly it might prevent you from imaging near the meridian which isn't really too big a deal. Also because the weight is distributed so far from the axis (camera and mirror) the intertia may make it more difficult to make guiding corrections in DEC.
But it's still a very tempting idea. A 1200mm f5.9 would give you a very similar focal lenght and focal ratio to a C8 with f6.3 reducer but for less than half the price.
Is this a good idea or not?
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