The Leica DM2700 M flexible upright microscope system uses LED illumination for all contrast methods: brightfield (BF), darkfield (DF), differential interference contrast (DIC), qualitative polarization (POL), and fluorescence (FLUO) applications. It also offers built-in oblique illumination, which improves the visualization of surface topography and defects. Optionally, the Leica DM2700 M can also be equipped with a transmitted light axis. The Leica DM2700 M is equipped, e.g. with an N PLAN achromatic objective series with magnifications from 5x to 100x, a field of view of 22 mm, a flattened image field, and large working distances.