Lytro, the One Digital Camera

An everyday, idiot-proof camera that stands apart for its innovation and savvy design
No view hole here. Just a 33-mm LCD display touchscreen. The Lytro is available in "red hot," "electric blue," and "graphite" (not pictured) Photograph by Yasu + Junko for Bloomberg Businessweek

Some other noteworthy innovations that utilize just a single button
Photographs by Bloomberg; Getty Images

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