[photo-3d] Depthmaster Auotfocus

[Ken Burgess <kburgess@xxxxxxxxxxxx>]

I've just read and interesting blurb on the Grayflex Stereo Graphic camera which I quote here:

"The lens system in the Stereo Graphic is called Depthmaster Autofocus, and consists of a unique setting of the two lenses that provides sharp focus throughout the entire scene without any adjustment on the part of the operator."

Shall I go on?
Well OK...

"The lenses are so positioned that one lens produces sharpest detail through the entire foreground range in one picture, while the other lens produces equally sharp detail in the middle distance and background of the other picture of the stereo pair. Thus when the pictures are viewed in a stereo viewer the scene appears sharp from foreground to infinity."

Does this actually work? If so it sounds like Graflex was on to something...  I'm thinking about getting one of these, anyone care to compare the quality of the camera and images to a (focused)  realist?  From the positioning of the viewfinder it looks like it might exhibit some serious parallax.

Ken