Is photography related to painting?

Although there is no direct relationship.

Many basic skills of painting, such as the grasp of light and shade, the understanding and application of color, the choice of composition and so on. People with basic knowledge of painting can get twice the result with half the effort in many aspects when they enter photography. Especially when ps darkroom processes photographic images in the middle and late stage of photography, people who can draw are good at or partial to painting, and the resulting image works bring a lot of picturesque feelings to photography and many new breakthroughs to darkroom.

From the technical point of view of the camera, it doesn't matter. A camera is just a tool, just like a brush paint for painting.

I hope it helps you.