The American annual of photography . Figure 2 aluminum; the slide rods are made of German silver, in orderto better withstand wear, while the screws are brass. Andright here let me caution against the use of rivets. I triedthem, but found the aluminum so soft that the rivets will nothold. Almost anyone can, if he is not properly equipped him-self, find some friend who is in a position to put together thissimple piece of apparatus. And I can assure those who willadd it to their equipment that they will find a constant sourceof gratification and enjoyment in its capabilities in the way ofproduci


The American annual of photography . Figure 2 aluminum; the slide rods are made of German silver, in orderto better withstand wear, while the screws are brass. Andright here let me caution against the use of rivets. I triedthem, but found the aluminum so soft that the rivets will nothold. Almost anyone can, if he is not properly equipped him-self, find some friend who is in a position to put together thissimple piece of apparatus. And I can assure those who willadd it to their equipment that they will find a constant sourceof gratification and enjoyment in its capabilities in the way ofproducing with an ordinary camera the most satisfactorystereoscopic pictures of any subjects that do not embody move-ment sufficient to prevent two 235 The illustration herewith shows the construction very clear-ly and, as can be seen, the marks with their correspondingfigures are so arranged that the first four are a quarter of aninch apart, while the remainder are placed at intervals of oneinch. With the camera at the extreme left of the frame, as onelooks at it from the back of the camera, there is an allowableshift of seven and one-half inches to the other end where theright side edge of the slide comes immediately over the num-ber showing the proper position for objects situated at a dis-tance of three hundred and fifty feet, or more. The other numbers indicate the slide positions for theirrespective distances in the same manner.


Size: 1327px × 1883px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1919