When Moment announced an anamorphic lens, it really caught my attention. After all, the film Tangerine was shot on an iPhone 5S using an anamorphic lens from Moondog Labs, so I was excited to try my hand at a more cinematic look. But what is an anamorphic lens? And why does it look so weird?

The first thing you’ll notice about the Moment Lens Anamorphic is that it’s rectangular instead of round, like most lenses. That’s because the elements inside are rectangular, and if you look closely, you can see the glass inside bend around horizontally.
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https://www.engadget.com/2018/10/19/moment-lens-anamorphic-review/