Re: [photo-3d] Twinning Cameras

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

At 08:33 AM 5/6/00 EDT, you wrote:
>  Late last year I was making plans to twin a pair of Minolta SRT
>cameras but gave up on the idea due to the separation of the lenses
>being over 2 3/4 inches. I got that distance from my Stereo Realist. I
>gave up because I was told that the distance would be too great to do
>stereo correctly.

There is no rule that says that correct stereo is done with
interaxial separation of 2 3/4 inches (or approximately equal
to interpupilary = separation of the eyes).  Some of the most
stunning stereo pairs are taken with much larger or much
smaller separations.

Side-by-side twin SLR rigs are a great supplement to a standard 
stereo camera.  The standard stereo camera is a very convenient
tool but it has a fixed stereo base (interaxial distance) and 
fixed focal length of lenses in most cases.  Twin SLRs offer 
variable stereo base, option to use lenses of different focal
lengths and all the extras (auto exposure, etc.) found in
modern cameras.  

Using longer FL lenses (say 135mm) in combination with a wider 
stereo base opens a wide range of possibilities, from tight
portraits to "zoo wildlife", to action stereo that looks like 
you are much closer to the action.

It is definitely worth exploring twin SRLs, not as a 
replacement but as a supplement of the standard stereo
camera.

George Themelis


------------------------------------------------------------------------
How about a flat, no-fee long distance rate of 6.7¢ per min. - 
or less? Join beMANY! Our huge buying group gives you rates which 
fall monthly, plus an extra $60 in FREE calls!
http://click.egroups.com/1/3820/8/_/160438/_/957625784/
------------------------------------------------------------------------