It’s great to learn by watching YouTube videos, but nothing beats doing something yourself. Learning by doing.
Here’s another opportunity try your hand at color mapping in Photoshop using the Lagoon Nebula. The Lagoon is a good target to practice with because it renders well in plain RGB color and it has a lot of detail in the three common narrowband filters; hydrogen, sulfur and oxygen.
Start by downloading the five images below. Then follow the process described in the video.
