The Problem is that when I inport an external img, to use it as an exemple to draw it in 3d (for exemple with a curve), I whant to zoom in, in order to make corections or to have more details. But if I what to zoom the img on a higher level the img becoms even smaller so that I can not make any corection in detail way. That happens only in the side and front sight. In the perspective works fine.

I thoght this option in the preference can resolve my problem. Do you have any Ideas what should I do.

Sory for my bad Englisch.