Dave JohnsonMacworld

Dave Johnson is a writer and photographer who has covered technology for magazines such as PCWorld and Wired. He is currently the Editorial Director for eHow.com's Tech channel. Dave is the author of How to Do Everything with Your Digital Camera, and over a dozen other books.

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LoopPay CardCase review: The best mobile payments system aside from Apple Pay

And even people who can use Apple Pay may still appreciate LoopPay's wider availability.

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Meet the iPhone cases that can hunt ghosts and build furniture

Think like the Most Interesting Man in the World: He doesn't always use an iPhone case, but when he does it can see heat or cut down a tree.

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These cases turn your smartphone into a pay pal

Both the Incipio Cashwrap and Loop ChargeCase add mobile payment capabilities to the iPhone. We look at the pros and cons of both mobile transaction cases.

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The best iPhone lens kit: Put a little DSLR on the front of your iPhone

Looking to outfit your iPhone's camera with an external lens or two? Dave Johnson put five lens kits to the test to figure out which one reigned supreme.

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VSCO Cam review: Take photos, edit, and share online in one snazzy iOS package

VSCO Cam is a snazzy camera and editing app with a half-baked online sharing experience bolted onto the side. The app needs only to find a way to smooth the rough edges in its interface to be a truly essential camera app alternative.