The ōPik is a standard humbucker-sized optical pickup with unique features like digital control and light-source cancelling. It's designed as a direct replacement for magnetic pickups.

Courtesy of Light4Sound.com

How light-sensitive pickups could replace your instrument's standard magnetic humbuckers—no routing required.

As mentioned in last month's column, "Let There Be Light in Your Tone," there are more ways to optically sense a string's motion than to just analyze a shade's dance on a photoresistor.

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