The contracting authority invites tenderers to a competition for the procurement of two identical, advanced inverted fluorescent microscopes (system microscope) with an option for cameras and software for Oslo University Hospital HF (OUS). The systems shall be used by the Department for Microbiology, the Research Section, Cell Culture and Virology (BSL3 Laboratory), and at the Department for Pharmacology. The microscopes shall be used in research and laboratory work with cell cultures, for microscopic assessments and quantitative analysis of cell cultures, either with phase contrast or fluorescent. Primarily they shall be used for routine assessments of cell morphology, confluence and detection of cytopatic effect (CPE) after viral infection. In addition they shall be used for multi-channel fluorescent microscopy for documentation and quantitative analysis of fluorescent marked cells. In addition an option shall be offered for a further one equivalent fluorescent microscope as well as service agreements and servicing.