Subtitles of the Movie

Now, just in case you're still a little confused about which ISO setting to use, let's take a minute to review a very simple concept. All you have to remember is the lower the ISO, the better. Not a single camera made these days that doesn't have a hundred or a two-hundred ISO setting and that's what you should be using whenever you can get away with it. Now, there are times when you have to use a higher ISO setting and of course, the higher the ISO setting, the more noise you're going to get and the dirtier your image is going to be, for lack of a better way to put it. So this is a hundred ISO shot. Let's take a look at what it actually does look like and you can see no noise; none that you can discern anyway. This is a hundred percent magnification. Now, if the noise were here, it would live in these dark areas of the image. But let's take a minute, boost the gamma here and bring up the detail in this dark area and you can see even when we boost the gamma way beyond what we would normally do in everyday application, you can't see any noise. It's probably there to some degree but the eye can't pick it up and it's, you know, it's not worth worrying about because it's not there. It has no influence on the image. So let's bring this back down and we can go look at an image that does have a lot of noise in it. Now, of course this is in a basketball arena. I'm trying to freeze action. So if we blow this up to a hundred magnification, instantly we can see that there is noise in this image. This is a 1600 ISO exposure. Now, of course, to use 1600 and sometimes even I use 3200 inside the arena, because that's what you have to use in order to freeze the action. In order to get that quick shutter speed and the open aperture to allow more light in, you have to use those higher ISO settings in order to freeze the action. But it's usable within the context of athletic photography, basketball, sports photography. It's usable. I mean, it doesn't detract from the image to the point that you can't use it, but you have a choice in where you want the absolute best quality. You'll want to use the lowest ISO that you can possible get away with. Now, in the next movie we're going to continue to deal with noise in your image and we're going to show you how to get rid of it, how to keep it down when you do have to use a high ISO setting. We're going to continue this image of noise in the next movie. Stay with us.