A squeezer is a small box that has a dimmer control combined with an on/off switch (see figure 25-1). Squeezers are excellent for light control situations since they can be set to a particular light level and turned off and on while retaining that selected level. A squeezer can be used with most incandescent lights and many other electric devices (such as barber poles, old tape players, etc.).
The most common use of a squeezer is to control the light levels of practical lights (lights seen by the camera). This can be particularly useful to adjust the level of a practical to minimize lens flare. Since practicals are typically ...