Re: Sony ex1r/ex3 refresh?

Please, can either Jim, Craig or Don answer these simple questions on that new camera, I not a techy.
1. Is the chip smaller, larger or the same as the EX 1?
2. Is the tele focal length of the lens shorter, the same or longer than the EX 1?
3. Is the low light performance of the new camera worse, better or the same as with the EX 1?
4. Finally, is the definition of the screen worse, better or the same as on the EX 1?

I know there might be other differences, such as menus, PP settings etc but my main concerns would be with the four questions, thanking you all for any light (low or high!) that you can shed.

Michael Slowe