The zoom levels
===============

This is the range of zooms on my Legend Cx for different number-of-bits.
I give the range over which it says 'mapsource' and not overzoom or
basemap.

16  30km-12km
18  8km-3km
20  2km-800m
22  500m-200m
23  300m-80m
24  120m-50m