Educational

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

An Exclusive Glimpse Into How Lomography Petzval Lenses are Made

Back in June, Lomography raised nearly $1 million on Kickstarter to launch its new Petzval 58 Bokeh Control lens. It's a lens that takes a classic design and adds a new twist: a bokeh control ring for adjusting the look of out-of-focus areas in your shots.

Today we have some exclusive behind-the-scenes photos of how Lomography's Petzval lenses are manufactured by the skilled optical technicians at the Zenit factory in Russia.

A Look at Photo Steganography, the Hiding of Secrets Inside Digital Images

Here's a fascinating (but very heady) video by Computerphile, which recently sat down with image analyst Dr. Mike Pound of the University of Nottingham to talk about the subject of digital image steganography.

Steganography is the practice of hiding one piece of content inside another. In this case, Pound talks about the idea of being able to kind all kinds of content inside digital photograph files.

How to Copyright Your Photos in 2025

When your finger presses down on a camera's shutter button and captures a photograph, that photo is instantly copyrighted with you as the rightful owner. However, there are benefits to formally registering your work with the United States Copyright Office. Today, we are going to take a look at the process involved in registering your visual artwork, along with the benefits of doing so and why you may want to consider it for photos you value.

This is How Fujifilm Recycled Disposable Cameras in 1998

What happens to used disposable cameras once the film has been processed and printed for customers? Well, oftentimes the camera company is able to get its hands on the discarded shell, load it up, and sell it to customers again. If you want to see exactly how this recycling process is/was done, check out the fascinating 15-minute video above, which shows how Fujifilm recycled and reused disposable cameras back in 1998.

‘The Bigger Picture’: Flashcards and an App for Photo Challenges and Inspiration

Photography can be a thrilling way to explore the world around us, but sometimes we need a bit of inspiration to get moving. ‘The Bigger Picture Cards’ are a way to not only get inspired but to also learn new photographic skills along the way. Sold as a $15 set of flashcards, the deck includes 50 cards to get you out and shooting. Just draw your selection, accept your challenge, and you are on your way to learning by doing.

How Nikon Film SLRs Were Made in the 1990s

Want to see how Nikon SLR cameras were made two decades ago? Back in 1998, the Japanese TV show "The Making" -- an international predecessor of How It's Made -- aired this 15-minute-long segment showing how Nikon manufactured its F70 film SLR (known as the N70 in the US), which was first introduced in 1994.

A Glimpse Into the Alliance Between Sony and Zeiss

Sony and Zeiss are two brand names that appear together on many of Sony's cameras and lenses. For the past two decades, the Japanese and German companies (respectively) have had a fruitful partnership in designing and manufacturing gear.

To help clear up any confusion regarding dual-branded camera equipment, Zeiss recently published an interesting article that explains some behind-the-scenes details about the partnership.

This is a Stereograph Photo Viewer from 1896

Australian toy photographer Ray of ToyShoots recently purchased this old school stereoscope that was apparently manufactured in 1896. It's the device people used to view stereoscopic photos as one 3D image (the View-Master, which was released in 1936, is also a stereoscope).

This is a Rooftopping Photographer From the 1920s

Rooftopping photographers have gotten a lot of attention and notoriety in recent days for climbing to extremely high points in cities and shooting photos while often teetering on the edge. It turns out photographers were already pulling similar stunts nearly a century ago.

The picture above (by an unknown photographer) shows a photographer taking a picture of New York City streets while standing high above on the corner of a skyscraper. It was taken sometime in the mid-1920s.

6 Excellent Film Rangefinders For the Beginning Photographer

Getting into analog photography can be an exciting proposition; maybe you find the medium more delightful, or you just want to learn more about the times of yesteryear. Either way, we have assembled a list of some of our favorite rangefinder-style analog cameras, ranging from the friendly and affordable Canonet QL 17 GII to the pricey yet exuberant Contax G2. We know that we may not have everyone’s personal favorites, but the list below is filled with cameras we know you’ll enjoy.

Baby in China Blinded by Camera Flash? Probably Not

Earlier this week, China's official state newspaper People's Daily published a story on its website about how a 3-month-old baby had been blinded in one eye by a camera flash. The report said that a family friend forgot to turn off the camera's flash before taking a picture from around 1 foot away from the baby's face, causing permanent blindness in his right eye and a loss of vision in his left.

‘Eadweard’ is a Biopic About Photographer Eadweard Muybridge

Eadweard is a new indie biopic about the life of English photographer Eadweard Muybridge, who's considered to be one of the godfathers of cinema due to his early experiments with capturing and projecting motion. The film is a 104-minute psychological drama that tells the story of Muybridge's life, from his controversial photos of nude and deformed subjects, to the murder of his wife's lover, to his work as one of the earliest "filmmakers."

A Glimpse Into Iron Mountain’s Mine, Home of Many Iconic Photo Originals

In rural Butler, Pennsylvania, hidden away 220 feet under the hills is one of the most valuable priceless photo collections in the world. That's where a company called Iron Mountain helps store Corbis gigantic collection of historical photos in a refrigerated, maximum security vault.

We've taken a couple of looks at this vault in the past, once in 2011 and again in 2014. The 6-minute video above is yet another look at Iron Mountain's fascinating facility: in addition to showing the photo collection in the mines, it takes a step back and gives us a better picture of what the whole underground operation is like.

This is How Press Photos Were Transmitted Back in the 1970s

In our world of digital photography and high speed Internet, photojournalists can quickly and easily send large numbers of high-res photos to the other side of the globe. Things weren't always so convenient.

The video above shows what a photo transmitter looked like back in the 1970s. What you see is a United Press International UPI Model 16-S, which scanned photos and then transmitted them using a telephone line.

How to Create Basic Double Exposure Portraits in Camera and in Photoshop

Scouting the world to find the perfect shot is one of photography’s pure joys. You discover the perfect moment, carefully frame your viewfinder, and press the shutter button. Within a fraction of a second, the world is seemingly pulled in through your lens: striking your film or sensor to create an everlasting impression.

However, what would happen if you fired the shutter a second time and created another impression over the first? You would create a double exposure: two images combined within a single frame. Let’s take a look and see how these artful creations come to fruition through a bit of simple ingenuity.

You Sure You Want to Be a Wedding Photographer?

If you want to be a wedding photographer, you need to stop and think about your life.

So you want to be a wedding photographer? Want to go pro, go full-time, ditch that desk and take the industry by storm? Stop and think about your life. Do you LOVE to work? Like, truly LOVE working? Not the recognition, not the money and the fame, and least of all the internal accomplishment feedback that comes from achieving small successes that only you can see. Nope, you pretty much need to love doing the work.

This is the Power of Age-Reduction Visual Effects

You've probably seen many examples of Photoshop being used to make a portrait subject look younger, but have you seen the same type of age-reduction retouching in real-time video?

Digital artist Rousselos Aravantinos recently did an age-reduction test using the digital compositing software Nuke and Mocha Pro. The 30-second video above shows the results of his experiment.