这台的传感器乳摸上并非是A7R4那块，以下是资讯
来源：https://www.l-rumors.com/leaked-first-image-samples-shot-with-the-sigma-fp
-l-show-it-has-60-2mp-sensor/
内容：
SIGMA fp L use a special pixel type effective 60.75 megapixels sensor named IMX5
13BQR from sony-semiconductor to replace the unstable Foveon X3 sensor. in 30 me
gapixels output mode, pixel can be full sampled, which makes it the same image q
uality as the Foveon X3. in 120 megapixels mode, fp L output the maximum resolut
ion in the world of full frame single shooting.
The newly CMOS sensor of sigma fp L has a CFA like the fujifilm’s Super CCD. Si
gma get a customized full frame 61 megapixels no-LPF BSI sensor with zig-zag man
ner pixels and 45° rotated bayer color filter array, which pixel design based o
n sony-semi’s most popular 3.76um Exmor R series. This special pixel array was
name as “Q67” or “ClearVid” in sony’s speech, was used in F65RS cine camera
.
This 61 megapixels zig-zag pixel sensor can output 30 megapixels green channel i
mage without any interpolation and color the picture like the Foveon X3 Quattro.
So it can be the flat version of Foveon X3, but save the high ISO.
In additionally, this customized sensor use the same color filter as the PhaseON
E IQ3 100MP Trichromatic. It has the best color reproduction even better than th
e old Foveon X3.
概略翻译：
适马fp L会用上索尼最新的IMX513BQR传感器，这款6000W的传感器采用交错式（zig-zag）
的位移排布， 超采样输出3000W时能达到类似Foveon X3传感器的完全采样效果，也可以差
值输出当前全画幅单次拍摄最高的1亿2000万像素。
https://i.imgur.com/2ePLIhQ.jpg