Today, we’re thrilled to introduce Video on Instagram and bring you another way to share your stories. When you go to take a photo on Instagram, you’ll now see a movie camera icon. Tap it to enter video mode, where you can take up to fifteen seconds of video through the Instagram camera. - Instagram
15 seconds is more than long enough to capture a good impression of something. I wonder how long it'll take until we see something akin to 90 seconds on the Verge in Instagram.