Quote:
Originally Posted by peter_4059
I'm interested to understand why binning the guide camera helps - I assume you get a brighter guide star so the centroid detection probably works better but don't you also reduce the guide system resolution by half? Sure - this will give you a nice smooth guide graph but does it make your actual guiding better?
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Spot on Peter. I'm using an OAG, guide cam has pixels 3.75um, imaging 4.54, so I don't think I need the resolution, but the binning can help finding good guide stars. I won't always use it though, mostly just a convenience factor, and sometimes the available stars will be too bright to warrant it.