If you're in the market for a new camera, have your eye on a fancy DSLR, and care about more than just the price, you'll want to take a few minutes and peruse this tutorial from the folks at LensProToGo. In the video they explain what terms like sensor size, crop factor and depth of field mean, and illustrate how each one can affect the photos or videos you're shooting.
If you have a DSLR and don't plan on ever upgrading your kit lens, there's probably not much to interest you here. But if you're thinking of expanding your photography kit, knowing the size of the sensor in your camera, and how it affects the zoom capabilities of a lens, will help you make a more educated investment in your gear. [Vimeo via planet5D]