Educational

PetaPixel's editorials are in-depth stories, thought-pieces, and opinions on the photography industry led by the minds of our editorial team.

Selecting a Portrait Lens With Correct Focal Length

I know this topic is covered here and there and everywhere: in school and online, in workshops and lectures, on street corner posters and graffiti under freeway overpasses… However, one way or another this topic seems to either elude a lot of photographers entirely or perhaps they ignore it knowingly. Either way, after continually seeing tight headshots done with lenses possessing an obviously incorrect focal length, my personal OCD has reached a boiling point and I decided to finally do this …

Behind the Scenes: Choosing the Winners of the 2015 National Geographic Photo Contest

Earlier this week, National Geographic announced this year's winners of its prestigious photo contest. After receiving 13,000 entries, the three judges -- photo editor Jessie Wender and photographers David Guttenfelder and Anand Varma -- had to come to an agreement on a single grand prize winner and the winner of the three categories (people, places, and nature).

An Introduction to Shooting with Adapted Lenses

If you have a lens of one mount and a camera with another, there's a good chance that there's an adapter out there that can help you pair the two. This is called shooting with an adapted lens (versus shooting with a native one). Photographer Mark Ryan Sallee of Michromatic released this helpful 12-minute primer on the subject.

This is a Star Wars Action Scene in the Age of CGI

One of the gripes Star Wars fans have about Episodes 1, 2, 3 is that George Lucas relied heavily on CGI rather than the brilliant practical effects that were found in the original trilogy. Many of the action scenes were simply actors waving light saber sticks around on giant green screen sets.

This Photo of an Astronaut Shows How Big the ISS Is

You've probably seen countless photos by now of astronauts working inside and outside the International Space Station, but sometimes it's hard to get a sense of scale when the photos don't show much of the station. If you'd like an idea of just how big the station is, check out this photo of American astronaut Kjell Lindgren working on it.

How I Work With Compositional Lines in Photos

Composition can make or break a photograph. This is why it's important to understand it and know how to effectively and creatively use it. In essence, composition describes the position of relative elements in a photograph. A strong composition will tend to have leading lines that draw attention to your subject: these can be horizontal, vertical or diagonal lines depending on the placement of your subject in the frame.

This is How Camera Gear Was Stolen in 2015

The anti-theft gear registry LensTag just provided us with this new look at how camera gear was stolen over the past year. As you can see from the pie chart above, car and home break ins are still the biggest way thieves are targeting cameras and lenses: they accounted for over half of all thefts reported to LensTag in 2015.

How Memorable Are TIME’s Top 10 Photos of 2015… to a Computer?

The braniacs at MIT have created an algorithm to determine the “memorability” of a photograph. The deep learning-based technology “learned” what makes a photo memorable by evaluating the rankings from 5,000 human volunteers, and even indicates which portions of an image it considers to be memorable with a heatmap depiction. The algorithm is allegedly as good as a human in determining what makes a memorable photograph.

There Are Now 8x More People Taking Pictures than 10 Years Ago

Camera sales haven't been doing too well in recent years, but that hasn't kept picture taking from exploding. While the dedicated camera industry has seen year-on-year declines, smartphone photography has turned everyone into a casual photographer: there are now 8 times as many picture takers worldwide than there were 10 years ago.

Video: The History and Science of Camera Lenses

After exploring the science of digital camera sensors, Filmmaker IQ just published this new video that explores the history and science of lenses. John Hess talks about everything from the ancient Nimrud lens from 750 B.C. up through how Japan came to dominate the lens industry.

These Color Photos of Paris Were Shot 100 Years Ago

Back in 1909, a super-rich French banker named Albert Kahn decided to create a photographic record of the world using the new color photography process that had just appeared, the Autochrome Lumière. He commissioned 4 photographers to take their cameras to places all over the world. One of the cities they documented was Paris.

DNG: The Pros, Cons, and Myths of the Adobe Raw File Format

Is it wise to convert your raw files to the Adobe DNG format? If you are using Lightroom or Photoshop with Camera Raw, you have the option to convert your master files to DNG. In this article I want to focus on the benefits of converting, the reasons why converting to DNG may not always be ideal or necessary, as well as tackle some of the misinformation about DNG.

A Private Tour of the Kodak Technology Vault

Tips from the Top Floor podcast host Chris Marquardt recently got a private tour of the Kodak Technology Vault in the George Eastman Museum in Rochester, New York. In the 1-hour video above, technical curator Todd Gustavson offers a glimpse into the treasures owned by the museum behind closed doors, stepping through the history of photography -- from the daguerreotype to digital camera prototypes -- in the process.

Interchangeable-Lens Camera Market Share in 2014

Nikkei Asian Review published this interesting chart showing which companies dominated the interchangeable-lens camera sales in 2014. Canon had 43.3%, Nikon had 32.1%, Sony had 13%, and other companies accounted for a combined 11.6%. From a year earlier, Nikon lost 2.5% share to Sony and other smaller companies, while Canon basically held steady.

The Science Behind Digital Camera Sensors

Here's a great 13-minute video in which John Hess of Filmmaker IQ teaches about the science and technology behind digital camera sensors. First, however, he revisits how photographic film worked, as some of the general concepts were carried over into the digital world.

The Basics of Histograms for Beginner Photographers

Here's a short 4-minute video in which photography instructor Karl Taylor offers a basic explanation of histograms for photographers who are just starting out. If you're trying to wrap your mind around the concept of histograms, this video may be a great starting point for you.

A Tour of the Fujifilm Factory in Sendai, Japan

Billy and Marc from The Fuji Guys recently paid a visit to the Fujifilm factory in Sendai, Japan, where different pieces of kit in the Fujifilm lineup are put together. The 8-minute video above is a behind-the-scenes tour that shows how the new Fujifilm XF 35mm f/2 R WR lenses are assembled.

An Introduction to Collecting Vintage Photographs

In 2011, a modern-day treasure hunter was browsing through an antique shop in Fresno, California. Flipping through boxes, he came across an old photograph. An unsmiling group of men, 19th century Americans it seemed, were playing croquet in front of a wooden building in a rural setting. It was an interesting photograph. He paid $2 for it and walked out.

How to Put Together Your Very First Fashion Shoot

You may have the eye, the talent, and all of the other necessary hard skills to make it in the commercial world. The only thing you lack is a portfolio relevant to the stuff you want to get paid to shoot. It’s a classic chicken and egg problem.

This is How Cameras Glitch with Photos of Propellers

If you've ever photographed spinning airplane propeller or helicopter rotor blades with your smartphone, you may have found that the spinning blades were turned into bizarre shapes in the resulting photo. What you're seeing is distortion caused by a rolling shutter, when a CMOS sensor captures a scene by scanning across it very quickly rather than capturing the entire frame at once.

Ansel Adams’ Pictures of an American Relocation Camp During WWII

Ansel Adams is best known for his breathtaking landscape photos, but he photographed much more than nature during his decades-long career. In 1943, already the best-known American photographer, Adams visited the Manzanar War Relocation Center in California, one of the relocation camps the US gathered Japanese-Americans into during World War II.