I need your guys opinion on something. I bought a new Takahashi FSQ106EDX4 and started imaging M31. First thing I noticed is Chromatic Aberation in all four corners. I contacted Takahashi Houston and they forwarded my subs and master image to Japan for analysis. Japan said that this was some kind of tangential something but within the specs of this scope.
I figured a scope of this caliber would not have this problem.
He said I could fix it with some trick in Pixinsight. I'm waiting to hear from Pixinsight to tell me how that is done.
Fortunately I am within the 90 day return window, I may do that.
What do you guys think of this image? All four corners are the same with the aberration pointed towards the middle of the image. The CA starts at about 30mm from center and gets worse as you get to the outer edges.
Keep or return or fix in post process??
+++ There is another thread discussing this too and here is an additional image
Edited by thekubiaks, 20 October 2020 - 10:13 AM.