The image size projected by a projector is determined by the distance between the projector itself and the screen. Thus, adjusting the distance between your Nebula and the screen allows you to find a suitable projected image size, especially for Nebula projector without zoom function like Mars, Mars II, Mars Lite, Mars II Pro, Capsule, Capsule II, Capsule Max, Apollo, Prizm, Prizm II Pro , Prizm II, Astro or Vega Portable.

Moving the projector closer to the screen will make the projected image smaller, and moving the projector farther from the screen makes the projected image bigger. When you place the projector at a proper distance, you can get a suitable projected image size for a great watching experience.