Equipment:
-Celestron 102 SLT
-Coronado PST H-alpha 40 mm
-homal lens NPZ
-filter Deepsky IR-cut
-camera QHY5III178m
-mount Celestron Nexstar SE.
Location: Russia, Anapa, backyard.
It was possible to significantly reduce the “grid” effect when shooting with a QHY5III178m camera. For this you need to use the program Fitswork, choose Processing> FFT> Automatic 2D filter
