A55 without Exmor R, why?
My understanding is that with larger sensor backside sensors have less value.
The backside puts the wiring on the bottom, but since the wiring is more a less a constant - independant of pixel size. For a small sensor the percent improvement is large, for a large sensor the relative improvement is small.
|AF4_2483 Surfing the Serengeti by DaveInHouston|
from Hot Air Balloon view
|Peregrine Falcon by Psychic1|
from Best Wildlife Photo of the Week - 4