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So, as you work with lights, you might have a need to modify them, shaping the light or directing it into a particular area of the scene. And a lot of lights have built-in features to do this, right, Chip? >> Sure. I mean, on board the light itself, there are all kinds of modifiers that are pretty standard with with a lot of fixtures, whether they're HMIs or tungsten. The first, sort of basic one being the barn door. And the barn door is just a ring with a lot black leafs, so they're not reflective, that can shut off light and control it into whatever shape or throw, whatever, area of the subject you want it to be.
And they usually go right on the front here. >> And that could be useful, because you might want to make sure that the light isn't spilling onto your subject. So it's not uncommon to flag that that way, so the light is going out this way, but not bouncing as much this way. So the barn doors can really come in handy, to control the direction of the light. >> Next we have lenses. Some lights like this one, like this Frenel have the lens built in, it's just a frosted piece of glass. That focuses the beam in varying degrees. With lights like this par light you get choices.
You get choices of lenses. And what they do is actually control the tightness of the beam, from a honeycomb one that gives you a whiter beam to one of these more spotty beams that will narrow the beam inten and increase the intensity of the light. >> And then additionally we can also use scrims to knock things down a bit. These tend to be pieces like this where you've got basically a wire mesh. And the density of the mesh will affect how much light passes through. So these usually have color ratings to help you know which one's which.
>> And it's all standardized. Right? Green throughout the industry indicates about just under one stop work of exposure loss or intensity loss from the light beam. The red is a double which is twice the amount, roughly two stops depending on the particular brand. >> And this is basically an alternative, because sometimes when you dim a light, you change its color temperature, and you don't want that, and you may not have the space to actually pick up the light and move it further away. One of the easiest ways to lower the intensity of the light is to move it further back.
But this is just an alternative to that because you may be pinched on space or you might want to keep the light not as broadly focused by keeping it up closer to the subject. And they just go right in the back of the fixture like that And with all those things, if the light is hot, make sure you're wearing gloves, because metal barn doors, metal scrims, metal rings on the lenses, all these things are going to heat up and could potentially cause an injury if you're not using good safety equipment when the lights are powered on. And we've got one more type of light, light shaping tool.
>> Yeah, as far as another on board tool for modif, modifying light, these soft boxes are real handy tools for increasing the surface area of the source which inherently makes it softer. And the way they normally work is you would use something like a, that's called a speed ring that's specifically sized for the particular light you're using. And you would attach the soft box onto the speed ring. And in this particular case with this soft box, I have, you can see how the speed ring is already attached to the soft box.
>> And that's just a point to mount it. So you can attach to the light. Again, very attractive for interviews. We'll take a look at these later on when we actually light the interview. Just a nice modifier to really improve the quality of the light.
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