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Hi Russell
'Shifting' layers in post processing does help, but the representation on the zwo website is accurate. The smear is far worse in the blue part of the spectrum than the red.
With Mars at 35 odd degrees up, I have a smear in red data of about 0.25", whereas in blue its about 0.9". This is significant when you are trying to get sub arc-sec detail.
As the dispersion is varying across the spectrum, an ADC does help more; you don't get the smear across each bandpass showing.
Cheers
Maurice
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