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2.2 The Intervalometer

So let's take a look at the settings on our intervalometer. They look pretty complicated, and they're not really so difficult to understand. So you basically have the options for the delay, which is the amount of time before it begins, the length, which is the amount of time an image is exposed. Usually you would set this in camera. But this is going to override any restriction on length. Then you have the intervals, so the number of time between the shots and then you have the number. How many shots you wish to take. Let's look at the first option. So if I want to set the delay, I can basically set hours, minutes or seconds. So the moment I set it to a five second delay, that's gonna start my intervalometer five seconds after I press the start button. This is a useful feature when you want to setup your camera to get a sunrise. You're too lazy to get out of bed. The other option we got here is the long or the length setting. This is basically the same as the bulb setting on your camera. This is useful if you're shooting maybe a star-trail or some kind of night lapse where you need to expose images for longer than your shutter speed will allow, but in my circumstances, you're not gonna really need this feature. The next option is the most important one for us, and that's the interval. So if I click on the set button, again we've got hours, minutes or seconds. Currently I've set it to three seconds so it's going to take a photograph every three seconds. What's important to realize here is that you don't have a faster interval than exposure time on your camera. It requires a little bit of math, but we'll look at some tools for configuring that later on. The last option, or the main option here is the number. So if I click on the set button I can go one, two, three, four, five. So I can configure how many pictures that I want to take. Usually there's a limitation. And if I go back the other way we'll see the limitation on this timer is 399 images. So that doesn't mean you can only take 399, but it's how many you can numerically key in, which is a slight restriction. For our purposes 400, 399 is gonna be perfect. That's gonna give us about 16 seconds of video time, so that's good. But if we set it to this value, i.e., nothing, zero, null, what that's going to do is basically take an infinite number of images until one of two things happens. Either the camera battery runs out or the memory card fills up. So this one allows you to override that restriction. But you can't calculate exactly how many images, the only thing you can do is calculate beforehand and just turn the timer off when you're happy. So once all that's done, there's one other option, which is the mute option. It's gonna make a beep every time it takes an image, so well you'll ask yourself why you might want to switch that one off. Once all that's done, simply click on the start button. It's going to count down because of our delay, five, four, three, two, one. Then it's gonna trigger the camera every three seconds until it runs out of power. And, that's that.

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