iPhone Lens Dial turns your smartphone into a turret-lensed throwback

Once upon a time, before zoom lenses were invented, movie and TV cameras had three lenses that the user could choose between, using a Lazy Susan-type arrangement to swivel them into place - you wanted to go wide, you'd swing in the wide-angle lens, if you needed a close-up, you'd swing in the telephoto. Well, in the spirit of everything old being new again, the iPhone Lens Dial now offers the same functionality for Apple's iconic smartphone.

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