The thing is once you go past .1mm print resolution, you pretty much need a microscope to see the difference.

Ulimakers claim reliable printing down to 0.05mm

But you'd need to see the same thing printed at different resolutions on the same printer to try and tell the difference between .1 and .05
did you say you were in holland, near ultimaker ? (Hmm, probably another thread)
In that case pop in and ask to see some print examples. Pretty sure they'd show you :-)

Holding an actual printed article in your hand is worth 3000 internet threads.