Collimating the light with the reflector makes them more parallel, and closer to sunlight. That has to do with how much "spread" there is in the light rays. Do the same with your lamp inside and you'll see your shadows change dramatically in size. If you stand outside on a sunny day, you can move your hand to the ground and up to the top of your reach and your shadow size won't change much at all. ![]() The easiest way to check this is how much your shadow size changes when you move closer to your shadow. If you want to get your light to feel like sunlight, you need it to be parallel. When you are close to a light source, its light radiates out in all directions. Since the sun is millions of miles away, by the time its light gets to us, it's very close to parallel. Why are you doing that? You are going to point a light towards it, and that parabolic dish, which is now a mirror reflector, is going to collimate the light so it runs more parallel. It's easier with tape to allow gentle overlapping and trim pieces to create a curved surface. It's important to use tape instead of sheets since you are covering a dish, not a flat surface, and that is more complicated. This is again very inexpensive, and there are a host of options online. You then coat that with mirror tape to create a smooth surface. If you don't have a sander or room to work, you can find dishes that aren't rusty to begin with. Be sure to sand off any rust, since we want the smoothest surface possible. Since you don't need it in working condition, you really have your pick. You can find these used in a variety of online marketplaces for really not much money at all. This seems hard, but it really isn't basically, every satellite dish in the history of satellite TV will work. So, the first step is to acquire a parabolic dish. ![]() Source a parabolic dish and line it with reflective tape. Will it? Let's find out.įirst off, what he is proposing is broken into a few key steps.ġ. Intended for a winter mood lift, he suggests this might also work for filmmakers. ![]() This YouTuber, DIY Perks, has laid out a (somewhat) affordable system for creating exceptionally realistic daylight. While there are powerful units like 12K HMI's that larger productions use to mimic sunlight, they require a truck, a generator, and a crew, and even then don't always perfectly create that special feeling of daylight. Creating a realistic sunlight effect on a budget is the dream of many independent filmmakers.
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