Most new techs don’t know what gobos are, let alone how to use them. Once you understand what gobos do — and how to use them well — they become a valuable resource for creating a fantastic room look. What Is a Gobo, Actually? A gobo is a thin metal or glass disc that slots inside an ellipsoidal fixture (also called a Leko or profile spot). It sits between the lamp and the lens, and light passes through the cutout pattern in the disc to project that shape onto a surface. Metal gobos are punched or etched — geometric patterns, foliage, abstract textures, window frames. Glass gobos are photographically produced and can carry full colour and fine detail. They’re more fragile and more expensive, but the image quality is in a different league. The basic concept is simple. The craft is in the execution. How the Optics Work Ellipsoidals have a focus barrel — a sliding lens system you adjust to sharpen or soften the projected image. Push it toward a hard focus and the gobo pattern comes in crisp and defined. Pull it the other way and the edges bloom and soften. Neither is wrong — they’re creative choices. A sharp window pattern on a cyc looks architectural. A soft leaf texture washing over a stage looks organic. Two other things affect how big the projection ends up: throw distance (how far the fixture is from the surface) and the fixture’s lens focal length. Longer throw means a bigger image. If you need a gobo to land at a specific size in a specific spot, look up your fixture’s beam angle specs and do the math before load-in. Surprises at focus time cost everyone. Static vs. Rotating Gobos On a conventional ellipsoidal, the gobo sits still. Drop it in, focus it, done. Moving head fixtures are different. Many have two gobo wheels — one static, one where each gobo can spin independently. Slow rotation gives you a hypnotic ambient look. Fast rotation breaks up into something almost stroboscopic. Some fixtures let you lock the gobo at a precise angle, which matters when you’re trying to line up a pattern across multiple fixtures.

Been working with software systems for more than 10 years, mostly around backend, cloud, AI, automation, and product development. One thing I’ve learned, knowing a programming language alone usually isn’t enough. The harder part is understanding the actual business. How to automate work that’s still manual. Connect systems that don’t work well together. Build AI into real workflows. Keep the backend stable when usage grows. Deal with data scattered across different tools. These are the kinds of problems I’ve spent a lot of time working on here in Japan. But I’m curious about the US side. For people running companies in the US, what technical skills are becoming difficult to find? And what skills do you think companies will need more of over the next few years?