Abstract: A method and a system for controlling an illumination level of a location is disclosed. The system includes: a light source, a light sensor, a processor and a memory. The method includes: calculating a light absorbance factor for the location, the light absorbance factor being a function of at least a distance of the location from the light sensor and an amount of light collected by the sensor in an area of the location upon an activation of the light source and calculating an illumination level based on the calculated light absorbance factor. The method further includes iteratively altering an illumination intensity of the light source until the calculated illumination level of the location is achieved.

Abstract: There is disclosed an apparatus for magnifying and capturing images of one or more samples, as well as an apparatus for changing objective lenses. Methods of using the apparatuses, and other embodiments, are also disclosed.