Newer NEX cameras such as the NEX-5R now have hybrid autofocus on sensor, i.e. both phase and contrast detection. My interest is in using Minolta/Alpha SLR lenses. Doesn't this technology eliminate the need for the bulky and expensive LA-EA2 adapter with the built-in mirror? The older LA-EA1 however isn't capable of tranmitting autofocus signals to the lens, is it? Shouldn't there be a simpler adapter without the bulky mirror of the LA-EA2 which takes advantage of the new autofocus technology?