03 Completion Report Instructions.pdf. 8000-FM-OOGM0004b. 02/19/16: 44 KB: Delete Document; Permissions
This magnification value determines the diameter of the field of view when the low power objective is used. A microscope's field of view refers to the diameter of the circular optical light that is visible when viewing an object under the microscope. This value forms an inverse relationship with magnification, which means that increasing the magnification results in the reduction of the field of view.
The objective lens of a microscope is the one at the bottom near the sample. At its simplest, it is a very high-powered magnifying glass, with very short focal length. This is brought very close to the specimen being examined so that the light from the specimen comes to a focus inside the microscope tube. The objective itself is usually a cylinder containing one or more lenses that are typically made of glass; its function is to collect light from the sample.