Alternatively lots Fehlkonstruktion

To increase it anticipated, there is for the cameras Nikon D3x and D3s with whom I'm working unfortunately no alternative to the shim. That it's better I do, because I also still with the amateur model from Nikon work of D700. In this camera, the grating disk is installed and can switch easily. The grid lines are also slightly thicker and pulled up to the edge, even in unfavorable light illuminated - which has proven itself especially at night architectural shots.
The lines at the focusing screen E are so thin that you can no longer see the lines in a bit uneasy structures such as brick walls or in low light conditions. In addition, the lines are not drawn to the edge - which is completely illogical - because the longer the line is the more accurate you can shift the camera. So altogether a bad design their task only met very limited.