SINGLE-BEAM HOLOGRAMS OF UNSTABLE SUBJECT MATTER e single-beam arrangement with a forward-tilted plate described in the previous chapter works well for small light-colored rigid objects and is suitable for many smaller museum specimens. To make the subject matter more stable, you can position the plate and subject erect or supine rather than tilted and elevate the laser so that the beam illuminates the subject from above. is setup is often the only one you can use for models of stage sets and imsy objects made from modeling clay, but there can be problems raising the laser high enough. When a group GS was working with had the task of making a hologram of the original architect’s model for the Albert Memorial, they used a professional camera tripod and took advantage of a short ight of stairs (Figure 7.4).