Quote:
Originally Posted by Andy01
Great detective work there Rodney, nicely composed triplet too  |
Quote:
Originally Posted by gregbradley
A really appealing image. The stars look great an terrific colour throughout. Nice that Tak TSA120 eh?
I am wondering why there are some diffraction spikes on some of the star when you used an APO scope? Something to do with the sensor microlenses?
Greg.
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Thanks Andy and Greg. I have pondered from time to time Greg as to why one would get diffraction spikes from a refractor. There seems to be mixed views on this with some suggestion that it is to do with the spacers in the optical tube. I am running the Tak reducer so I don’t know if this contributes. Generally though I don’t find them offensive so I am ok to just let them be.