What is the typical magnification of an ocular lens? what other magnifications are possible?

Generally speaking the ocular lens magnifies 10x. Determine the magnification capacity of the objective lens. The magnification is written on the side of the lens. Traditionally, the value could be 4x, 10x, 40x, or 100x. According to the difference of the focal distance, lenses of different magnifications are available, such as 4x, 10x, 40x, and 50x. In addition to the magnification, indexes to show the performance of an objective lens include the numerical aperture and the working distance.

Explanation:

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