timotheecognard

Foveon: The Clever Image Sensor That Has Failed to Catch On

Back in the early 2000s, Sigma -- a company usually known in the photography community as a lens manufacturer -- released a new type of camera sensor named the Foveon X3. This sensor technology was first patented in 1999 by a company called Foveon, Inc. (later acquired in 2008 by Sigma) and featured an innovative color perception technology: a 3-layer stack of photosensitive diodes.

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.