I saw today where the Olympus CEO said the E-M5 sensor is made by Sony.
Yes bakubo, I saw it on SAR as well, but not sure I understand the Yahoo translation.
http://www.sonyalpharumors.com/olympus- ... nsors-too/
I must admit that I am surprised that Sony are now into making 4/3 size sensors. Maybe they have just taken a "knife" to the NEX-7 24Mp sensor to make it 16Mp for 4/3.
I don't have any personal experience of Panasonic sensors other than those in Lumix LX2, 3 and 5. As stated before I am impressed by the performance of these and the quality of Jpegs out of camera. Sony must have decided to "buy" into this segment as they would have had to set up new "moulds" and must have lower production runs than Panasonic. Surely volume is a determinant of unit cost in this business because of the up front investment in equipment. On the other hand Sony have put money into Olympus so maybe it is a case of "I scratch your back and you scratch mine in return".
I also notice that some people are still thinking that Sony make the sensor for Nikon's V1 model. That is despite Thom Hogan denying it.