It means that you are photographing
subjects that are partly or totally shielded from the direct light source of the
45° side lighting. Reflected lighting from auxiliary light sources or from reflective
surfaces such as conventional or metallic walls, floors in the shaded area are other
variations of natural lighting.
Listed here are four examples of various subjects photographed under shielded natural
lighting:
In the earlier portrait shot using daylight balanced photoflood light, care must
be taken when using this type of lighting since it has the tendency to produce slightly
reddish or warmer skin tones when using daylight colour slide film.
In this photo of two models that were photographed
using daylight photoflood lights, two lights were placed at a 45° angle from
both sides of the camera. One of the light was used a fill-in and set at 1:2 ratio,
which is half that of the main light.
Shooting pictures using fluorescent lighting is easy if you don't mind the greenish
effects that is associated with pictures being photographed under such conditions.
Of course, there are colour correction filters available to enable colour compensation
for pictures shot under this condition. Or you can mix daylight with fluorescent
lighting to have a warmer tone in your picture.