[LargeFormat] Useful uses of lasers.
Les Newcomer
largeformat@f32.net
Fri Jan 10 14:38:03 2003
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.
>
>
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