The two things the iPhone 11 Pro has on their cameras are a telephoto lens and night mode for night photography. While one expects that when zooming in on the x2 is using a telephonic lens … this doesn't happen when the images are at night. But that's it Apple uses cunning to make it look like that.
One of the advantages of a telephoto lens is that it allows us take pictures with magnification x2 without losing the solution in the picture, it is the lens itself that causes physical expansion. Problem? This lens has a small aperture and its sensor captures much less light than the main camera or wide angle camera.
In the night photos however exactly where more light needs to be absorbed, so if we wanted to zoom in at night x2 … if the iPhone works as it works during the day (to activate the phone's lens) we would see nothing. What does the iPhone say? Use a large lens to suggest that you are using a telephoto lens.
The lens lens is transparent, the larger the angle
Basically when we press zoom x2 on the night photos with the iPhone 11 Pro what the iPhone does perform the digital zoom of the primary lens. This means taking a photo that captures the primary lens, widens in half and enlarges it. A digital zoom for a lifetime. Problem? This resolution is minimized, because the image is basically blurred. The solution? The iPhone automatically saves the image so that it has the same resolution with no digital zoom.
As a result we have a photo that appears to have been taken with a phone lens but it was actually taken with a large lens, planted and modified to look like a nice zoom. From PetaPixel they were able to reassure you and you can do it with something as simple as covering the phone's lens with a finger while taking a photo at night with x2 zoom. The view says that you should stop seeing the image because you cover the lens, but since the main lens is actually used … you can still see the image. On the other hand, when we go to image metadata we see that it has aperture f / 1.8 (maximum lens aperture) and not f / 2.0 (lens lens saturation).
This is It's still curious. As we have seen, the end result of the user is the same. However, at the time of pressing the x2 button in the Camera app, the iPhone performed a much more complicated process than simply moving from one lens to another.
Via | PetaPixel