[LargeFormat] Useful uses of lasers.

[Les Newcomer]

I didn't know you could shoot holographically without a laser.

It's been a long time but the Seseme Street explanation is that you split 
the laser into to beams and direct it at an object from different points 
of view.  This creates an interference pattern, much like watching the 
waves when two stones are dropped in a pond.  The film records the pattern 
. Once process and hit with a laser the film "redirects" the laser into 
the interference patter and thus a 3d object is constructed.  the 
difficulty is any vibration is recorded too.  So if you are doing this on 
the diningroom table  and shift your weight or take a step, you moved the 
table.  When I was at RIT even with an isolated table, students would hack 
into the HVAC system of the building and turn it of because it ruined the 
exposures when it would come on.

Les

I'm sure others on this list will have a better and more accurate 
explaination
On Friday, January 10, 2003, at 11:32 AM, mark blackman wrote:

> Apparently I live in a "some communist police state where the subjects
> have been denied the ability to defend themselves".  I'm so glad to be 
> told
> of this, obviously They kept this a secret from me.
>
> On a more useful use of lasers, has anyone tried using them to shoot on
> holigram film? It's subject I know little about (probably those damm
> communist police again), but would be fascinated to read how its done.
>
>
> _______________________________________________
> LargeFormat mailing list
> LargeFormat@f32.net
> http://www.pairlist.net/mailman/listinfo/largeformat
>