Re: Single lens 3D and the Vivitar Q-DOS lens

[P3D William Carter <wc@xxxxxxxxxxxxxxxxxxx>]

Peter Davis asks:

>"Does anyone know where I can get a Vivitar Q-DOS lens?  This talk
>about anaglyphic photography is making me curious."

Peter, and anyone else interested in exploring the wacky wonderfull 
world of SL3D, please, pretty please, don't use a Q-DOS lens unless you 
already have one.

Make your own, it can't help but be far superior to Q-DOS! It's easy to 
do. And, I will help you in any way I can.

There are at least two major design flaws in the Q-DOS lens, all of 
which compound to diminish the 3-D information, and overall effect. 

One is that it has a clear strip between the left and right halves of 
the aperture. Another is that it employes desaturated separation 
filters. 

The point of the filters, of course, is to keep the L/R perspectives 
separate. To reduce their effectivness, and/or to limit their effective 
area, simply reduces the 3-D effect. 

I don't mind that the mechanism of SL3D was clearly misunderstood by the 
Q-DOS people. I am irritated that they would intentionally try to 
rip-off any would be 3-Ders (intentionally since they had Jimmy Songers 
patent to work from!). But, I am really ticked at them for proliferating 
such a rude example of single lens 3-D.  









------------------------------