How to Focus on the Stars at Night for Milky Way Photography

This video tutorial explains how to focus on stars using a DSLR or mirrorless camera at night when autofocus is ineffective. It guides viewers through switching to manual focus mode, using live view and the focus magnifier to zoom in on a bright star, and adjusting the focus ring until the star is sharp. Finally, it suggests taking a test shot to ensure everything is in focus.

Why is autofocus not effective at night when photographing stars?

What should you do after focusing on a star?