Best mix of nib and pen

The filler combines the best of simple Bandzugfedern and normal pens. The top results in a typeface that just as sharp at the edges, as with a nib. I have to compare a Lamy fountain pen with calligraphy pen (1.5 mm) and in which the edges are not as precise. The ink can comes with the filler also be measured with real calligraphy ink (eg Scribtol).
Unusually, however, the ink cartridges and their installation in the filler because they are not as frequent changes and the typeface is more important I have it deducted no star.