One of the primary concerns of museums nowadays is the digitisation of the collection to enhance conservation, accessibility and dissemination. We present in this paper 3 examples of collection digitisations carried out by 2 Belgian federal museums in the framework of the DIGIT-03 program. The first part details the creation of a 3D virtual museum, the second concerns focus stacking of type specimens and the last is the digitisation in 2D and 3D of a complete collection.