Hi Steve.
I love newtonians, and much prefer them over SCT's. However for astrophotography, the newt may require the mirror to be moved up the tube, or to get a low profile focuser, if you wish to use a DSLR on it. For a CCD device, i'm not sure.
Also, a newtonian on an EQ mount can get the eyepiece into odd positions and difficult to observe through. You need to make sure you can rotate the tube in the rings to ge the eyepiece into a comfortable position.
Apart from those 2 things, I much prefer newtonians.
But the C11 is a good scope, too.
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