1. Holding DP2 Quattro —-> http://www.theverge.com/2014/2/12/5406944/sigma-dp-quattro-hands-on-photos
2. Solving the problem of higher resolution.(smaller diodes)
Last generation of Foveon sensors had a little disadvantage, occouring as “acromatic abberation” inside the sensor.
The different wavelenght will be broken in different angles, so the red light could be hit the red diode of the diode next to it.
They solve this Problem with theQuattro! The new sensor get the resolution from the 1. layer. The layer of resolution is now about 0,5 µm instead of 5 µm.
Now it is possible to go even further with resolution, making the diodes smaller without the problem of the accomatic abberation inside of the new sensor.
Understandable? 😀
3. Bigger diodes in red & green will also have less noise!
Last Foveon diodes were 4,9µm * 4,9µm = 24 µm²
New Foveon diodes have 8,7µm * 8,7µm = 75 µm²
So 3 times the area will at least 1 or 2 more stops of gain ISO performance or hopefully more…;)
Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.