Quote:
Originally Posted by RugbyRene
Hi all,
I've heard that flats are required to fix vignetting and dust donuts. The thing is, with the system I have (SW 100ED + 2-inch filters + ZWO2600MC) I don't have any vignetting and I keep my optical train clean so there's no obvious dust donuts.
So, having said that is there any need for flats?
Rene
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Can I suggest that you stack the same set of subs with and without flats and if you don't see any appreciable difference then you have your answer.
Chris