Boffins develop radically new camera sensor... that Sigma tried 20 YEARS ago!

Photo showing the construction of a new type of image sensor
(Image credit: Empa)

Photographic image sensors are continually evolving, with technologies like stacked sensors, pixel binning and RYYB sensor arrays all touted as having improved image quality to some extent. However, all these advances have essentially been tweaks of the same Bayer sensor formula, which arranges the red, green and blue elements of a sensor's pixels adjacent to each other in a grid formation. Then a color filtration layer above the pixels ensures each R/G/B photodiode only absorbs the light wavelength it's supposed to.

A conventional Bayer sensor array on the right, illustrating how a relatively small portion of the overall sensor array is dedicated to each color. (Image credit: Sigma)

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Ben Andrews

Ben is the Imaging Labs manager, responsible for all the testing on Digital Camera World and across the entire photography portfolio at Future. Whether he's in the lab testing the sharpness of new lenses, the resolution of the latest image sensors, the zoom range of monster bridge cameras or even the latest camera phones, Ben is our go-to guy for technical insight. He's also the team's man-at-arms when it comes to camera bags, filters, memory cards, and all manner of camera accessories – his lab is a bit like the Batcave of photography! With years of experience trialling and testing kit, he's a human encyclopedia of benchmarks when it comes to recommending the best buys.