The Latest
A Nikon Z-series mirrorless camera with no lens attached, showing the sensor, against a green and black abstract background.

Nikon Can’t Fully Solve the Z6 III’s C2PA Problems Alone

Nikon suspended the brand new C2PA functionality introduced in the Nikon Z6 III's first major firmware update after a major security issue was discovered. Nikon has taken the critical step to revoke all C2PA signatures issued before the C2PA functionality was taken offline, but a complete resolution will require changes to the C2PA validation tools themselves.

A smartphone displays the TikTok logo on its screen, positioned in front of a blurred American flag in the background.

TikTok’s Algorithm Will Be Under American Control In Trump’s Deal

President Trump is expected to sign an executive order this week to finalize a long-rumored TikTok acquisition. In view of the impending deal, more details surrounding how the U.S. will tweak TikTok have come to light, including changes to the app's algorithm that is essential to its success and core to security concerns surrounding the app.

Sigma 135mm f/1.4 DG Art Review: Massive and Magnificent

A camera lens is displayed on a checkered surface with a "Petapixel Editors' Choice" badge and "Petapixel Reviews" text in the bottom right corner. The background is dark and out of focus.

I absolutely love the 135mm focal length, and feel like it’s quite underrepresented on modern mirrorless mounts. It’s a great choice for portraits, candids, indoor sports, and street photography. So when I heard Chris Niccolls would be unavailable to review the new Sigma 135mm f/1.4 DG Art lens, I jumped at the chance!

A split image shows a silhouetted person by a tree at sunset, a bearded man in a dark jacket, and a man standing in a sunlit, leafy area. Bold text reads: “FILM GRAIN EVERYTHING YOU NEED TO KNOW ABOUT.”.

How to Emulate Film Grain in Your Digital Photos

Every few years, I write an updated version of the Film Grain Emulation guide. I do this because my passion drives me to learn more, and my understanding of film grain changes significantly.

A collage of three photos: a stone bridge over a river in a city, people walking through a covered, illuminated shopping street at night, and a woman with dark hair wearing a white top and heart necklace.

Photographer Captures the Stillness and Emotional Depth In Everyday Life

Modern photography is often defined by speed, filters, and fleeting trends, yet Kerwin Mallari has carved a distinctive path by focusing on stillness, intuition, and the subtle beauty of everyday life. Surrounded from an early age by his father’s extensive collection of photographs, he developed a profound appreciation for the stories that images can tell.

A close-up of an electronics workbench with a circuit board, wires, a linear rail system, a magnifying glass, and various electronic components arranged on a wooden surface.

How to Build a ‘Simple’ Focus Stacking System

Each year, my photographic instrumentation students build very simple focus stacking systems. After several years, I decided to construct a more advanced version that could move a stepper-motor-driven stage to precise positions, automatically collect a series of images, and then manually use a stacking program for combination into a single high-depth-of-field image.