newyorkpubliclibrary

Stereoscopic view of a lush mountain valley with a river running through it and coniferous trees in the foreground; rugged mountain peaks rise in the background.

These Animated Stereograms Bring 19th Century Photos to Life

Stereo images have been part of photography since its invention in the first half of the 19th century. Cameras enabled artists to produce two identical images from very slightly different perspectives -- all that is needed to create convincing "three-dimensional" images. While technically possible with paintings and drawings, cameras made stereograms significantly easier.

One Thousand Historic Photos Unveiled by the New York Public Library

It seems like every few weeks another long-lost photo archive is discovered and digitized, and the newest of these archives is a set of one thousand historical images taken as part of a Farm Security Administration project in the early 20th century. The photos -- some of which were taken by the likes of Dorothea Lange, Walker Evans and Russell Lee -- were originally put together to combat poverty, but have instead become an important glimpse into what was then simply everyday American life.

Stereogranimator: Create Your Own 3D Photos Using Vintage Stereographs

The New York Public Library has a massive collection of over 40,000 vintage stereographs (two photos taken from slightly different points of view). To properly share them with the world in 3D, the library has launched a new tool called the Stereogranimator. It lets you convert an old stereograph into either an animated 3D GIF (which uses "wiggle stereoscopy") or an anaglyph (the kind that requires special glasses).