optics

DxO Update Brings 1,192 New Optics Modules And More

The French photo software company DxO has released an update to its Optics Modules that it says will give photographers the best possible performance from their camera and lens combinations, correcting lens imperfections and softness with "unparalleled precision".

Sony Versus Sigma

Sony Versus Sigma: Which 50mm f/1.4 Reigns Supreme?

When Sony and Sigma released lenses with nearly identical specifications (or at least nearly identical target customers), photographic gear scheduling marked a rare alignment. Photographically speaking, the concurrent launch of these two similar lenses is the equivalent of a full solar eclipse—incredibly rare and also amazing to see.

What is Chromatic Aberration? How to Deal with Color Fringing

If you've ever noticed an unsightly colored fringe or halo on objects in your photographs, you've seen chromatic aberration. It's a common problem in photography and can detract from an otherwise good image. Fortunately, there are ways to minimize or even eliminate it, both before you hit the shutter button and after when editing your picture.

Why Lens Coatings Are So Important in Photography

In recent years, some lens designers have updated their lenses with new lens coatings. For instance, Pentax's newest limited lenses feature an existing optical design with only a few improvements, including a better lens coating.

Boris FX Optics Plugin

Boris FX Optics Brings Cinema Effects to Photoshop and Lightroom

Academy award-winning software developer Boris FX has launched a new version of the Optics plugin for Adobe Photoshop and Lightroom Classic that the company says will add "the same high-end cinematic look and effects to photos that the film and television industry has relied on for over twenty years."

Lenses Don’t Cause Perspective Distortion and ‘Lens Compression’

The focal length of lenses doesn't cause perspective distortion, which is often explained as "lens compression." Period. Now before you call me crazy and dismiss whatever I have to say, I’d like to invite you to take a dive into how lenses work and what actually causes perspective distortion.

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.

Diffraction Explained: Why Your Lens is Worse at f/22 than f/8

It's common knowledge that most lenses are at their best (i.e. sharpest) between f/5.6 and f/8, depending on the lens. But why is that? Why does stopping down further actually make the image softer? This is what YouTuber ZY Productions explains in the video above.