In 1931 a new attachment was offered to let Leica photographers capture live stereo pictures using their normal 50 mm lens. This device consists of a pair of prisms in a sturdy housing suspended in front of the lens by a small arm that fits the accessory shoe. The prisms create two images from slightly different angles on the standard 35 mm negative. Since each is a half fram size, the arm was provided with a half frame viewer.
A modified version of the prism housing was offered later on for the Leitz VIII-s projector to project the images suitable for viewing with polarized glasses. A small individual viewer was also offered mounted on a short column.
The Stereoly was offered for about ten years. The arm was modified from time to time to work with variations in the camera body design. Notches were provided on the arm to accommodate various models of the 50 mm lens. The one I have has four notches making it a very late version of the device. The serial number is 3037, suggesting how few of these little marvels were made. I show it mounted on a IIIa with a SUMAR lens. The booklet open to the Stereo page is the Leica Accessory Guide published in 1984 by Hove Foto Books
I bought this Stereoly twenty years ago in 1981. A year later I took the model pictures at a photography show in the CNE Automotive Building. The PHSC had a booth right next to the stage. The girl playing is my eldest daughter, Suzanne taken April 15, 1982 when she was 12.
ABOUT THE IMAGES. Click on any image and in a few seconds you will see an enlarged view in a separate window. The images were taken with a Nikon 990 digital camera and modified as required in Photoshop. All images are © 2001 by the Photographic Historical Society of Canada and may be used if the source is mentioned.