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What is Timelapse

Lesson 4 from: Capturing Change Timelapse Workshop

Colin Delehanty

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Lesson Info

4. What is Timelapse

The 3 key values you need to know before head into the field to time-lapse.
Next Lesson: Camera Gear

Lesson Info

What is Timelapse

Let's go over what time-lapse actually is. Now, before we get into what time-lapse is we should start by talking about what video is. Video is actually showing you a certain number of pictures per second. So the video that you're watching on me right now is showing you 24 pictures, every single second. Now that frame rate that varies depending on the project you're working on. So if you're in North America, you'll use 24 frames per second. You might use 30 frames per second. But if you're somewhere else in the world you could use 25 frames per second. You could use 50 frames per second. So just know before you work on your time-lapse what frame rate you're gonna be using. Now for this workshop just to be clear and what I'm teaching you, we're gonna use always 24 frames per second. Now the goal with time-lapse is to capture a lower frame rate over long periods of time. So when you capture those images, they're gonna be compiled into a video that plays back at 24 frames per second. And w...

hen you watch that video it's gonna look like time is being sped up. And the reason why we use time-lapse to do these shots, to capture long periods of time is because it's more efficient in the way that it uses battery and your memory card. Because you're only taking a certain number of pictures rather than con continuously rolling video, your battery is not gonna be strained as much and you're gonna be able to fit a lot more pictures on your memory card. So that's why we use time-lapse for these types of shots. Now the next thing we're gonna go over is the challenge with making time-lapse. Normally when you're shooting time-lapse you're trying to think first, like, what am I trying to capture? And what period of time is this happening in? So then you start to think about what settings you should use for your camera. Now, there are three values we're gonna go over to help you understand how to set up your time-lapse. The first thing we're gonna go over is clip length. Now, what that means is when you compile your time-lapse into a video, how long do you want it to play? So if we, for example, if we want our time-lapse, when compiled into video to play for 10 seconds, we're gonna think about what frame rate we are gonna be using. So we want a 10 second long video and we want it to play back at 24 frames for seconds. So we're gonna multiply 10 times and that will give us 240. So that means we want to capture 240 photos to get 10 seconds of video. The second key-value to understand is the event duration. So if our event lasts for one hour we're gonna use that to figure out what the interval is that we're gonna need to get 10 seconds of video. So we want to capture one hour. So we're gonna convert that to seconds. So that means we're gonna multiply 60 minutes times 60 seconds, and we get 3,600. Now, if we divide that number by 240, we get the number 15. So that means we want to use an interval of 15 seconds. That means there's 15 seconds, 15 seconds between each photo. And if we take a photo every 15 seconds for one hour we'll have a ten second long clip. The third thing to understand is interval. Now interval is kind of tricky because it depends on the movement of your subject. So for example, if we're capturing a busy intersection you have some fast moving subjects, such as cars and bikes and people walking across the street. And a lot happens in a short period of time so you're gonna want to use a shorter interval than 15 seconds. I would say five seconds for the scenario. Now another scenario is we're capturing clouds, and clouds can move faster or slower. So sometimes when the clouds are moving slow you want to capture a longer interval. 15 seconds would be appropriate in this situation. But if you have fast moving clouds you're gonna want to use a shorter interval so you can capture more movement. And so that movement looks smoother. It's important that all your movement looks smooth so that the viewer isn't disoriented. So that wraps up the basics of time-lapse. And if you can understand those three key-values it'll help you create smoother looking time-lapses over longer periods of time.

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Ratings and Reviews

Ondrej Dvorak
 

I have seen tons of timelapses, but there is no other timelapse film that touches my soul as much as Project Yosemite 1 I never forget the moment when I saw Project Yosemite for the first time! That moment I knew that that’s what I wanna DO! Colin is the reason that I bought my first DSLR! Thank You Alex for getting together with my hero and make this awesome idea happen!

Bryce Lord
 

Clear and concise workshop to understand the process of Time-lapse photography Being new to this aspect of photography, I found this workshop informative and directional. If I were to give a critique, it would be regarding equipment choice for the entry level bridging to pro-level for the introductory student. Otherwise, it lays a nice foundation to build from.

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