The new 50MP sensor inside the Canon EOS 5Ds camera is not made by Sony
Prior to the Canon EOS 5Ds announcement, several websites reported that the new 50MP sensor was developed with/by Sony. Apparently this is not the case - the sensor was developed and produced "completely in-house" by Canon. Here is the quote from Chuck Westfall:
Despite some rumors to the contrary, Westfall said the 50.6MP CMOS sensors in the 5DS and 5DS R are developed and produced by Canon. When asked whether they were created in collaboration with Sony as some rumors indicated, Westfall responded by saying: “Absolutely not. The sensors were developed completely in-house, by Canon.”
The new 50MP sensor offers no dynamic range improvements over the previous 5D Mark III sensor:
