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The 2x optical zoom out refers to the ultra wide angle camera lens that captures more scene. The digital zoom just involves zooming in on part of the image produced by the normal wide angle lens, which sacrifices quality. It's kinda like pinching to zoom on an image you've already taken
 
I think they’re saying “zoom out” because of the wider focal length. Basically the opposite of telephoto but I’m probably explaining that wrong.
 
They're fixed focal length lenses They don't zoom. What Apple calls "zoom" is the ability to fake zoom out by using the other lens and interpolating.
 
They're fixed focal length lenses They don't zoom. What Apple calls "zoom" is the ability to fake zoom out by using the other lens and interpolating.
It's not a "fake zoom out", the focal length of the UWA lens is half of the normal Wide Angle lens. There is no interpolating involved
 
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