Sigma Patent a Dual layer Foveon for the first time, in general Foveon sensors are made up of three layers. According to patent documents the new sensor will improve the readout speed of the sensor.
Sigma Foveon sensor Details Patent Details
- [Publication number] Japanese Unexamined Patent Application Publication No. 2018-195961 (P2018-195961A) click here
- [Publication date] December 6, Heisei 20 (2018.12.6)
- Image processing signal method, image signal processing apparatus, imaging apparatus
Each pixel has two layers of “B and G” or “G and R” as shown in a figure of embodiment.
We will sure see some improvements in low -light performance and readout speed of Sigma sensor, as we all know Foveon sensor are too good at base ISO but when you reach ISO 400 you can notice noise in your image and even ISO 1600 is bit unacceptable from a Foveon sensor. To solve this issue Sigma removed a layer from sensor and rearranged entire pixel structure. Hope to see some good cameras from Sigma in near future.
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Traitors. I’m still waiting for 3 layer video sensor to get accurate computational photography. 2 layers, is a toy.
2 layers are 100% more than the others.
2 instead of 1.
twice as good
I think thats fine
Maybe 1 is a toy
If its not 1:1:1 is not foveon. This is a sad turn of events for sigma. If its not three layers and a true merril sensor this camera will sink them as that is literally the only benefit of this cameara.