David White Stereo Realist 2,8 35mm立体相机

       The Stereo Realist is a stereo camera that was manufactured by the David White Company from 1947 to 1971. It was the most popular 35 mm stereo camera ever manufactured[1] and started the era of popular stereo photography of the mid 20th century.

参考自：

https://en.wikipedia.org/wiki/Stereo_Realist#Accessories_and_mounting_services

http://corsopolaris.net/supercameras/Stereo135/stereocameras135.html