Why can ins only zoom in and not zoom out when shooting video?

The reason why INS can only zoom in and not zoom out when shooting video is because the way it records video determines that it can only zoom in. The recording method used by INS is to shoot video through the wide-angle lens of the camera, which can capture more scenes, but at the same time, it will also cause the objects in the picture to appear smaller. In order to let the audience enjoy the video content better, INS chose a way that can only enlarge the picture but not reduce it.

Extended content: Wide-angle lens is widely used in the field of photography, because it can provide a wider field of vision and more depth of field, making the picture more stereoscopic. However, wide-angle lenses also have some limitations, such as picture distortion and small objects taken at close range. Therefore, when shooting video in INS, in order to maintain the integrity of the picture and the characteristics of wide-angle lens, we can only enlarge the object to make it more visible. This is also one of the unique video styles of INS platform, which brings a unique visual experience to the audience.