One of the best and most used microscope today is the zoom monocular microscope. It is a very amazing microscope which can either lower or higher the magnification of an object by rotating the zoom knob. It it very useful especially in the field of zoology and botany wherein you can use these to investigate and view insects, plants, fossils, stamps and coins, and other biological purposes. It is very portable and you can bring the zoom magnification ocular microscope elsewhere.