Quote:
Originally Posted by Robert_T
thanks, the ZWO filter drawer iimmediately after the tilt/centering adaptor of the camera.... so closer about midway... that said I've tried different locations with different rigs and always get Halo's on bright stars with this filter. any suggestions? that said... I kinda like them... perhaps I'm odd, I like diffraction spikes as well ?:-)
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I believe that's the recommended positioning, as close to the chip as possible. So sorry I can't help. I guess it is the filter?