Komentar resmi
We haven't heard of any issues with focusing the X5. We have been using the X5 with all the various lenses that are available with great success.
There is such a thing as a bad lens calibration though so you might want to try redoing it and make sure you are at least 60 m from the high contrast object you are calibrating on. Also, make sure that the lens is switched to AF it is has one.