What does the telescope manual say: field of view (1000m): 6 1m?

When observing a microscope, the bright prototype range is called the field of view, and its size is determined by the field stop in the eyepiece.

The diameter of the field of view, also known as the width of the field of view, refers to the actual range that can accommodate the inspected object in the circular field of view seen under the microscope. The field of view diameter 23 is the most scientific, and large field of view is easy to cause field curvature. F=FN/Mob F: field diameter, FN: field number, Mob: objective lens magnification. The field of view number (FN) is marked on the outside of the eyepiece barrel. As can be seen from the formula:

1. The diameter of the field of view is proportional to the number of fields of view.

2. Increasing the multiple of the objective lens will reduce the diameter of the field of view. Therefore, if you can see the whole picture of the object under the low-power lens, you can only see a small part of the object under the high-power objective lens.