MICROSCOPY · Microscopy is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). A microscope is an optical instrument that magnifies objects otherwise too small to be seen, producing an image in which the object appears larger. A microscope uses a lens or a combination of lenses to produce highly magnified images of small specimens or objects especially when they are too small to be seen by the naked eye. A light source is used to make it easier to see the subject matter. Most photographs of cells are taken using a microscope, and these pictures can also be called Micrographs. Three parameters are especially important in microscopy: Magnification, Resolving power and Numerical aperture. i) Magnification · ...