lecture

How a Fresnel Lens Works, Explained with a Simple Blackboard Model

If you've heard of Fresnel lenses in photography before but have no idea what they are or how they work, here's a fantastic short primer. In this 3.5-minute video, physicist David G. Willey (AKA the Mad Scientist) explains the science behind the lens style using a simple and easy-to-understand model on a blackboard.

Take a 40-Minute Tour Through the History of Photography

Great Britain's Royal Institution has put together a fascinating "tour through the history of photography." Using his own camera collection as a jumping off point, chemist Andrew Szydlo takes you through a sort of "crash course" on the history of photography in 41 minutes.

Does Photographing a Moment Steal the Experience From You?

Countless photographs are snapped every day by people looking to preserve their life's experiences, but is the incessant picture taking actually robbing us of them? Travel photographer and writer Erin Sullivan recently gave this interesting 8-minute TED Talk on the subject.

Using Drones to Shoot War Zones

Photographer and director Joey L has been using camera drones to capture aerial photos and videos in conflict zones. Here's a 21-minute talk he recently gave on his work at Hardwired NYC.

The Wildlife Photographer Who Shoots in England’s Urban Jungle

Want to be a wildlife photographer but find it hard to get out of the city? Try shooting urban wildlife. Here's an inspiring 13-minute Nat Geo Live! talk in which photographer Bertie Gregory shares stories about his adventures in capturing wild animals on camera in England's urban jungles.

TEDx Talk: Babycakes Romero Discusses ‘The Death of Conversation’

Street photographer Babycakes Romero scored a viral hit last year with his project "The Death of Conversation," a series of photos showing people "together" but lost in the worlds of their own smartphones.

Romero was recently invited to TEDxBergamo in Italy to talk about the project and his thoughts on the images. You can watch the 16-minute presentation above.

Chris Burkard on the Joy of Photographing Surfers in Freezing Waters

Chris Burkard is a California-based surf photographer who has shot for some of the biggest companies and publications in the world. After years of shooting on popular, sun-soaked beaches and making a living through his "dream job," Burkard began to yearn for beaches that weren't dominated by tourists and the comforts of civilization. So, he began traveling to remote -- and often frigid -- shores around the world for surf photos that are off the beaten path.

Photographer Shares How He Spent Two Years Living on Photos Instead of Money

Back in 2012, we wrote about a project called "Pixel Trade" by Australian photographer Shantanu Starick. The basic idea was simple but crazy: Starick wanted to travel through all seven continents on the globe without ever spending any currency. Instead, he would try to trade his services as a photographer to people willing to provide him with shelter, food, and transportation.

Starick recently appeared at Behance's 99U to give a 20-minute talk on spending the past two years living on photos instead of money.