zz SAR
"A source told me that Sony is testing a High Resolution mode that works
just like on the Olympus E-M5II. The sensor takes multiple shots in slightly
different positions moved by the stabilization system and then combines
time in one High Res Picture. The source told me he saw it creating 48.9 MP
images on the fly. Of course that features works fine when shooting still
objects. The source doesn’t know yet if the tested feature will work as
hoped by Sony. If yes than it could be introduced in a future firmware
upgrade. If you want to check out how good the Olympus solution works check
out the test at Imaging Resource."