What is lean enterprise and why is it essential your businesses' survival? Read part one in a series of nine articles about lean enterprise from VIPGroup.
The numerical aperture of a microscope objective defines the objective's resolution. Each microscope objective has a minimum and maximum magnification necessary for the details in an image to be resolved. A simple formula for the minimum value is (500 x NA). And for the maximum magnification (1000 x NA).
Other differentiating factors include cost and portability. 1  A simple microscope is only equipped with one biconvex lens, often with a short focal length. 2  A simple microscope has only one level of magnification, i.e. its magnification is not adjustable and is equivalent to the lens used.