The Olympus BX 51 WI microscope is primarily used for fluorescence measurements. The instrument is equipped with a Prior proscan stage controller and automated neutral density filter and color filter turrets. Dichoric filters are available for Texas Red and FITC. Fluorescence emission is detected with a Hamamatsu EM-CCD camera. Objectives available include UPplan Apo 100x/0.40 air and LucPlan Fc 40x/0.60 with correction collar air objectives as well as oil immersion objectives.