I guide with the QHY5 a W066 and image with the Canon20d on the VC200L, normally at f6.3. The setup rides on a Sphinx SXW. I guide with Guidemaster v 2.0.25 using the outputs on the QHY5 to drive the ST4 inputs on the Starbook. Typically guide accurcy over 3-5 mins is +/- 2" as reported in the GM logs.
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