Stereographs originally had to be paired with a stereoscope in order to generate the three dimension effect intended. But you can replicate the “lifelike effect” Sir David Brewster envisioned by viewing original stereoscopic images on a cellphone device and pairing it with google cardboard. Not surprising since, the stereoscope is the grandfather of VR goggles of today.
Both techniques rely on the same principle of physics: “the two eyes see slightly different images when directed at a given object”. Our stereoscopic vision merge the parallel images into one and create the 3D effect originally intended.
All you need to experience the 3D effect is to grab a cellphone device and pair it with a google cardboard viewer.
to build your own viewer all you need are a few everyday items you can find in your garage, online, or at your local hardware store: cardboard, lenses, magnets, hook and loop fastener and a rubber band.
