Because your iPhone goes with you everywhere, you’re always ready to capture every moment. And with iPhone 4, you can do it in stunning high definition. Its advanced backside illumination sensor delivers great-looking video in both bright and low-light settings. And in dark environments, you can brighten the scene with the built-in LED light.

Edit video right on iPhone.
No need to wait until you’re back at your computer to edit video. You can perform basic editing right in the Camera app. Just drag to select start and end points on a filmstrip.Turn your video clips into a finished movie. With iMovie on iPhone 4.
You’re on vacation, and you want to create a video postcard of everything you did that day and share it with your family. Just use the iMovie app — available on the App Store for just $4.99. Built for Multi-Touch, iMovie lets you combine and edit video clips, polish your movies with dynamic themes, add music and photos, and share your finished movies with the world.
Tap to focus video.
Say you’re recording a scene with subjects in both the foreground and the background. How do you make sure the camera focuses where you want? Just tap that part of the image on the iPhone 4 display. The camera immediately focuses on it and adjusts exposure to match the lighting. When you want to focus on another part of the scene, just tap again.