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Hi Matt
Great topic and the saratoga article gives some food for thought in tracking down the dreaded flexure. With my current setup I am getting about 0.7pixel
per minute flexure movement on the imaging scope and all my attempts at stiffening the mountings to no avail. Also I agree with Matthew regarding the guiding camera. I too tried my old DSI Colour but disgarded this for a QHY5 mono which is excellent and gives me rock steading guiding using PHD.
The comments on off axis guiding are interesting but I find it useful sometimes to move my separate guiding scope off collimation with the imaging scope to get a good guide star.
Cheers Peter
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