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Even if you know how to operate your SLR camera and external shoe-mount flashes, you might not have any …

Nikon created this short video to introduce the various Nikon cameras that have …

Photographer Mike Collins created this simple video that gives you a visual look at the difference between full frame sensors and crop frame sensors when using the same lens. The video uses a Canon 5D Mark II for the full frame shots, and a Canon 7D (1.6x crop factor) for the crop shots.

In 1983 the BBC aired a series called "Master Photographers" in which they interviewed some of the biggest names in photography at the time, including Ansel Adams, Diane Arbus, and Henri Cartier-Bresson. The series can't be found anywhere on DVD, but luckily many of the episodes have been uploaded to YouTube. If you're at all interested in learning how historical greats worked and thought, this is a video series you have to bookmark and chew through.

If you're a fan of the Polaroid SX-70, this promotional video from the 1970s should stir up warm fuzzy feelings. If you've never used one, watching this might give you a better idea of why so many are obsessed with it.

TED has some of the most interesting talks you'll find on the web, with topics ranging from how diet can prevent cancer to demonstrations of amazing new photo technology. They also have a great collection of talks by photographers, and we've compiled a list of 14 of them here. These short talks are eye-opening, jaw-dropping, and often quite moving.

Here's an interesting behind-the-scenes video series that shows the creation of a Canon 500mm f/4.0L IS lens. It's a neat look at the guts of glass, and an opportunity to see how exactly the various components of a lens are created and put together.