Setting the proper exposure for a video is different than it is for a still image, but of course, it is just as crucial to get it right as it is with a photo. This fantastic video will show you how to properly expose a video consistently no matter the situation.
Coming to you from wolfcrow, this excellent video will show you everything you need to know to achieve proper exposure in video. This is even more important than with photos, as you typically have far less latitude in post-processing with video than you do with photos, which is why it is so crucial to be extra precise in your settings. On the other hand, the way you control the three fundamental exposure parameters is different from stills, in that you do not get the same sort of freedom with shutter speed due to the 180-degree rule. Luckily, most modern cameras provide a range of advanced features to help you really dial in the correct settings. Check out the video above for the full rundown.
If you want to continue learning about video, be sure to check out "Introduction to Video: A Photographer's Guide to Filmmaking With Lee Morris and Patrick Hall!"