Which is better, Canon 550d or 60D? My friend's Nick D90 got stuck while shooting the video, but it didn't flow smoothly.

Both of them are similar in making videos. The D90 card is not a machine problem, but your SD card has a problem and the speed is not enough. You must be above level 6 to ensure that HD video will not get stuck. Watch your players.

But the camera is mainly used to take pictures, and video is only an auxiliary function. Although the focus can be correct, the effect is not flattering, and the zoom is completely manual, and the zoom fluency is far less than that of electric zoom. Don't expect a camera to have the function of a video camera.

The processor of the camera processes a single image, while the processor of the camera processes continuous images. The two have different emphases.