SON 28 versus SONdelux
SON hub dynamos uses two types of generators: SON28 and SONdelux. ...
Usually we look at the wall projection of a headlight when we evaluate its light field. Our comparison of light fields shows how their road projection looks like and what makes an ideal light distribution. Have a look yourself!
Bad sight to far distance
A light without focalising optical system shines horizontally to a vertical wall. Its light field looks completely even on the wall surface.
The same light shining to the floor will make a different light field. It is very bright nearby, in far distance it will shine far less brightly (it decreases with the square of the distance).
The human eye adapts to the too bright near field. You will have a very bad sight to far distance.