In typical cases of back and side lighting, although the surface of a 3-dimensional subject facing the camera becomes dark, a portion is usually strongly lighted. Even though standard measurement with the Lumisphere can bring out detail of the darker portions, on occasion, the brighter portions can become overexposed and difficult to see. In some instances, this effect can even be enhanced to produce a special photographic composition, but for a generally more attractive result, perform as follows. First use the Lumisphere and measure by standard method, then determine exposure from the mean value (same technique as used for Observatorial Scenes).
6. Silhouette Photography
In situations such as a silhouette of a person, tree or bridge in the foreground against the setting sun and brilliantly shining sky as background, remove slide and point Lumisphere toward the setting
sun to measure (as with Reflected Light Measurement). Then
without inserting High slide, set to 
mark. In this manner, the foreground becomes silhouetted by underexposing the light source.
