To want to leave the processing and gaps ürbig. Grade for children it makes handling more difficult given that the cross-eyed sinterized inserts must be used very carefully for enlargements. Some ridges had to be removed in order to use the microscopes. The Aufleuchtung is sufficient fluoroscopy not. The VGA camera can not be used because it sits very shaky and is no longer recognized by any standard computer. Outdated drivers do the rest. Unfortunately, I had expected more.