π¬ Module 01 Β· Lecture 1.1
What Is Video?
By the end of this lecture, you'll know exactly what a video is β not just that it plays on a screen, but what's actually happening inside it every single second. π€―
π€ The Big Idea
Video Is Just a Flip Book!
You know those old cartoon flip books? Where you draw a slightly different picture on each page, flip through them really fast, and it looks like the character is moving?
π
Video is EXACTLY that. π
Your camera takes hundreds of individual photos every single second. When those photos are played back fast enough β your brain gets tricked into thinking it's smooth, real movement.
That's it. That's video. Simple as that!
Your camera takes hundreds of individual photos every single second. When those photos are played back fast enough β your brain gets tricked into thinking it's smooth, real movement.
That's it. That's video. Simple as that!
πΈ Key Term #1
What Is a Frame?
FRAME
Each individual photo inside a video is called a Frame. One frame = one photo. That's literally it. A 1-minute YouTube video contains 1,800 individual photos playing one after another at 30 per second.
β±οΈ Key Term #2
What Is Frame Rate (FPS)?
FPS = Frames Per Second. How many of those photos are shown every single second. Here's all you need to know:
| FPS | What It Looks Like | Where You See It |
|---|---|---|
| 24 FPS | Dreamy, cinematic, film-like | Movies, Netflix, cinema |
| 30 FPS | Smooth, natural, everyday | YouTube, TV, most phones |
| 60 FPS | Super smooth, hyper-real | Sports, gaming, slow-mo source |
Easy rule to remember: More FPS = smoother movement. Less FPS = more cinematic feel. Neither is wrong β it depends on what you're creating!
ποΈ What Your Eyes Actually See
Here's something fascinating β your brain and eyes have a limit too!
Below 12 FPS β your eyes can clearly see individual photos. It looks like a slideshow, not a video.
At 18β20 FPS β your brain starts getting tricked but it still feels slightly choppy. Old silent films were shot at this range!
At 24 FPS β the magic happens. Your brain fully accepts it as smooth, real motion. That's why cinema has used 24fps for over 100 years.
Above 60 FPS β most people can't tell the difference anymore. More frames, but your eyes have hit their limit!
Below 12 FPS β your eyes can clearly see individual photos. It looks like a slideshow, not a video.
At 18β20 FPS β your brain starts getting tricked but it still feels slightly choppy. Old silent films were shot at this range!
At 24 FPS β the magic happens. Your brain fully accepts it as smooth, real motion. That's why cinema has used 24fps for over 100 years.
Above 60 FPS β most people can't tell the difference anymore. More frames, but your eyes have hit their limit!
π Bonus Concept
How Does Slow Motion Work?
Ever wondered why slow motion looks so smooth? Here's the secret:
π€― No Magic. Just Math.
If you film at 60fps but play it back at 30fps β you have twice as many frames as the playback speed needs.
So instead of rushing through them, the video takes its time β playing each frame more slowly. Result? Beautiful slow motion. That's it. That's the whole trick!
So instead of rushing through them, the video takes its time β playing each frame more slowly. Result? Beautiful slow motion. That's it. That's the whole trick!
π‘ Pro Tip
Always Match Your FPS
Before you create a new project in DaVinci Resolve, always check what FPS your camera recorded at. Your project FPS must match your footage FPS.
If they don't match β your video will look choppy, play at the wrong speed, or both. We'll cover how to set this up in Lecture 2.2!
If they don't match β your video will look choppy, play at the wrong speed, or both. We'll cover how to set this up in Lecture 2.2!
β
Checkpoint
β
Quick Check
If you film at 60fps and play it back at 30fps β what happens and why?
Answer: It plays in slow motion! Because you recorded twice as many frames as the playback speed needs β so each frame gets more time on screen, making everything appear slower. No software tricks needed β just physics! π