I did some indoor testing with Gain = 300
and could not see any grid pattern on the SharpCap
preview and capture screen while the camera
was running. I even tried to use the gamma
feature for focusing to enhance the view even
tho the capture ignores that feature.
I used AS3! to stack 5, 25, and 125 images
and observed them in ImPPG initially with
its default setting and all three looked just
fine. However, stretching these 3 cases
show that the grid pattern gets worse the
more stacking you do. This confirms what
JWestervelt said in 2020: " As I suspected,
stacking software was aligning to the grid
artifacts on a small scale and wrecking the
resolution of the image."
I think it unlikely that anyone can provide
data that show a grid pattern in each SER
frame (without enhancement) if my ASI178 is any
indication. Altho, when observing the sun itself
I was able on one occasion to see the pattern on
the preview screen when using the gamma
enhancement focus aid in SharpCap.
Edited by SgrB2, 08 May 2021 - 08:02 AM.