Artist Jon Stam hacked a Viewfinder to make the image inside go from stereoscopic to digital:
The imaginary Museum consists of a digitally hacked View-Master and (RFID enabled) paper discs. Instead of stereoscopic sightseeing through diapositives with an original View-Master, these Imaginary Museum discs activate digital content from the web to be viewed though two high resolution micro screens inside the viewer. Each disc holds a collection of 7 meaningful digital things (still, moving, 2d, and 3d) curated by various artists and designers. To view a collection one must simply place a disc in the viewer and press lever down to change scene. An Imaginary Museum was developed for House for Contemporary Art Z33′s New Times New Heros presentation. It is produced on demand for exhibitions, events, and personal use.