Scenic Mountains: 3 Lenticular 3D Postcard Greeting Cards - Mt. Whitney, Heleakala Crater & Zion Canyon

Lenticular 3D images or auto stereograms have a unique quality among 3D formats, lenticular prints can be viewed stereoscopically without optical aids (special lenses, glasses, or filters). This ease of viewing makes lenticular prints widely popular and entertaining for all ages. A lenticular image is a combination of multiple input images overlaid with a lensing material to provide a sense of depth movement, or other change depending on how the input images differ. And this is all due to the thin plastic lens with its lenticules, permits lenticular printing a variety of variations such as a morph, flip, animation and 3D.