> All DSLR camera manufacturers have problem to ensure accurate focus with
> different lenses, in the film age no one notice about it but the problem
> can't hide when pixel count increases in digital age.
We noticed. We just didn't know what to blame. It took a long time for
us to figure out why the OM system had sharpness issues (system
vibration caused by the aperture actuator). Nikons tended to have a
slight focus shift to counter how people shot them and mirror
alignment caused a bunch of focus issues in all SLRs. Of course,
Rangefinders had their own set of unique problems.
AG
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