If you want to push smartphone photography to the limit, there's no better option than Moment's library of cases and lenses. Once you buy a Moment case for your phone, you can attach any of the company's lenses. One of those is the 18mm Wide Lens, which is currently $79.99 at B&H Photo — $20 off the original MSRP, and $38 lower than the usual Amazon price.

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