A clear sky and enough time for adjusting sharpness. Solution was found in getting the spectrum line in the middle of the space; I get sharpest images when both edges are sharp. Once this was done, I make sure the dustlines on the grating are well seen.
Setting: TLAPO80/480 with Sol'Ex by James R. and ASI678MM
2nd Gen Slit and Herschel Wedge
Software: SharpCap, Inti V7.0.3, CS4, DeNoise AI
Tilt 0,09°; Sx/Sy 1,09
SSM3 with avg < 1,5arcs whole morning
