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The A7R is designed to be used with FF ZA glass via adapters, at least one of which has a SLT mirror and PDAF sensors. This is one case where different registration would screw up AF. It is true though that we are just speculating, but IMO there are more chances than not that the sensor cover is as thick as the A7. Just look at how much trouble Kodak and Leica had with IR and what not because their cameras have really no AA not the gimmick of Nikon.
that's true, i always forget about the mirrored adapters. i think they allow non lens specific micro adjust which may be able to overcome any small differences in cover glass? also, isn't the IR filter usually separate from the AA? both can contribute to the problem, and i haven't heard anything about the IR filter in the a7(r).
Hello guys, it is monday morning at my place, and maybe I don't get at all what the problem is with registration distance and AF with mirrored adapters.
You seem to have constructed a problem that does not exist. Different registration with true AA less filter stack is the solution to the problem, not the problem. Not?