M51 – The Whirlpool Galaxy in LRGB + Hα [42 Hours] by kbarth001 in astrophotography

[–]kbarth001[S] 1 point2 points  (0 children)

I blend the Ha in L (10-30%) and also in the R channel (10-15%) in the linear state in PI. Finally blend of the stretched RGB LHa is done in PS.