Tuesday , December 1 2020

Harvard engineers discover "Metacorrector" on the camera, defining one of the biggest irritations of photography



Chromatic aberration is just a fact of life when it comes to photography. The combination of high-quality facilities – in particular – and consumer skills can minimize signal purple fringe. But what if a simple layer on your lens can eliminate CA? Join a team of scientists from the Harvard School of Engineering and Applied Science (SEAS) who have done just that.

Called "metacorcretor", the coating consists of a "one-layer surface of nanostructures," a SEAS press release reported.

The structures can be seen in the image below.

Structures or "nanopillars" change the speed at which light reaches the focal point, reducing or eliminating chromatic aberration:

"You can imagine the light because the different packages are delivered at different speeds as they are distributed in the nanopillar." We designed the nanopillars so that all these packets arrive at the focus point at the same time and with the same time latitude, "says Wei Tin Chen, an associate professor of applied physics at SEAS and the first author of the article.

Here's another image showing photos taken without (left) and (right) meta-editor. As you can see, the difference is significant.

I know we're all accustomed to watching the perspectives of photographers, but technology has many uses – for example, high-resolution microscopes whose clarity is paramount.

And while Harvard is "studying" [commercialisation] opportunities, "I think it will be some time before we filter.


How to quickly determine chromatic aberration in Photoshop

Chromatic aberration is the undesirable color distortion you sometimes notice on the edges of your photos. This happens because the colors of the light have different wavelengths, which means that your camera lens reflects them slightly differently. Here's a short correction for offset in Photoshop.

Read more

[Harvard SEAS, via PetaPixel]

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