The dark glass lens makes the actual lamp filaments easy to view too. Price: $90
You might have seen pictures of old-style DPs squinting at a lighting setup with what looks like a dark monocle scrunched in one eye. Nothing digital here: That’s just a piece of dark glass similar to what a welder uses. With it, the DP can look directly at any extremely bright bulb. Historic Hollywood production supplier Alan Gordon Enterprise offers an updated version, complete with a slick, blue, anodized-aluminum holder. But what’s the idea? Looking into a light source such as a bright key light or even the sun obscured by clouds enables you to locate the light’s center. Then you can better determine where to position the lights, or scrims and other luminance controls, to control for the best look.