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Old 19-04-2023, 10:45 PM
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Atmos (Colin)
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Join Date: Aug 2011
Location: Melbourne
Posts: 6,984
As you know it’s not the sharpest image on the block but there is so many factors that can go into that.
As for the combo, I’d argue that it’s perfectly fine if what you want to do is high resolution imaging of small regions. I’ve been imaging for a few years at 0.4”/pixel and loved it, recently moved to 0.5”/pixel and have no regrets.

Overall optical quality does play a role, that also goes for the reducer. You could have a great telescope but not so great reducer. Or the mush could be caused by less than perfect optics. Collimation is another big one. Seeing can be the biggest contributor to mush however. I’ve had nights comfortably below 1.5” seeing and then a few days later due to a wind direction change it’s pushed 3.5”!
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