
Since building our first digital camera in 2002, Sigma has single-mindedly pursued the goal of true high picture quality through the development and commercialization of a completely new kind of sensor technology.
This is the world's one and only full color capture system which uses three layers of photodiodes to gather the entire red, green and blue color information of light.
This innovative format minimizes the need for signal processing, thereby preserving image purity to effortlessly render awesome detail and texture.
Since our founding, we have never wavered from our goal of photographic truth. The revolutionary technology that enables us to achieve this goal is known as Foveon, and is what makes every Sigma camera special.
This year, 2012, marks another step forward for Sigma's flagship Foveon X3 Direct Image Sensor technology with its extraordinary 46 mega pixel resolution. Now, this next-generation image sensor — which made its debut in the Sigma SD1 — brings its irrefutably superior image quality to every camera in Sigma’s line.
This amazingly natural realism is "standard picture quality" in Sigma's world. And it is the new benchmark for digital camera performance.
With the next-generation Foveon Merrill, you will discover new horizons of image quality and photographic expression.

The Foveon X3 Direct Image Sensor uses technology originally developed by the late Dick Merrill (1949-2008), a brilliant engineer and talented photographer. This revolutionary image capture system reflects both the artistic and technological sides of Merrill’s personality. As an expression of Sigma’s passion for photography and in honor of Dick Merrill’s genius, we have named the latest generation of the Foveon X3 Direct Image Sensor the Foveon Merrill.