Honestly, we don’t know why the pictures show close up photos of birds on your complete phone screen. When the lens adapts with your phone it simply enhances the camera that is already there, as if it is your eye. When you put your eye up to the monocular there is a black circle surrounding the outside ring, with only the very center focused on what you are looking at. When it is attached to the cell phone camera it is no different. Therefore, the photos you see advertised on Amazon are abhorrently misleading. You cannot take a picture of any birds from any distance like any of the advertised photos show, not without further cropping and editing. That doesn’t mean that the smartphone adaptable brands are bad but just means that you will have to practice your editing skill before you can have photos as they show.