How to shoot Holograms
Holography, like photography, produces an image on film. Holography captures the three complete dimensions of a scene, including its depth. Holography like photography can be a simple process. To make holograms you don't need to be or become an expert in lasers and optics. This article will show you the basics. You can purchase the minimum tools needed to build a simple and inexpensive holographic studio( laser, isolation table, optics, film and development chemistry) all for about $200.00.
Why Shoot Holograms?
Holograms are fun! I find holography more interesting than photography. If you need more of a reason than that, the commercial and fine art markets for holograms are expanding. Inexpensive embossed holograms are commonplace. Embossed holograms may be found on credit cards, magazines and comic books. Specialty companies offer self-stick embossed holograms for use on business cards and stationary. Holography opens up new vistas for the photographer to explore.
Holography & Photography
We might best understand how holography records three dimensional images by comparing it to something more familiar, like photography.
Photography creates a two dimensional image on film. The film image is called a negative. The photographic image is a single unchangeable viewpoint. The third dimension (depth) is collapsed onto the plane of the film. Figure 1 is a drawing of a simple box camera. The image formed by the lens onto the film is a real image. Lighting for photography can come from any number of light sources such as the sun, electric lights or flash tubes. Looking at a photograph from an angle just creates a foreshortening of the flat image, the image always remains at the one viewpoint.