Overview of the sample in the Delphi is out of focus

[delmic]

Currently the focus of the navcam is hard coded. If you're lucky, the focus is correct, but in most of the time you're not lucky.

So instead of using a hard coded position, we should either:

• Run the autofocus (starting from this hard coded position)
• Run the autofocus at calibration and reuse this value (= one value per Phenom/sample holder)