The lens with the smallest magnification has the largest field of view.( usually 4x)
The objective lens with the lowest magnification typically has the greatest field of view. For example, a 4x objective lens will provide a wider field of view compared to higher magnification lenses like 10x or 40x. This is because lower magnification allows more of the specimen to be visible in the microscope's field.
Start with the lowest magnification objective lens, typically 4x or 5x, as it provides a wider field of view and makes it easier to locate the specimen.
objective lens
You should always begin focusing on a specimen with the 4x objective lens because it provides the widest field of view, allowing you to locate the specimen easily. This lower magnification also offers a greater depth of field, making it easier to find and center the specimen before switching to higher magnifications. Additionally, starting with the 4x lens minimizes the risk of crashing the objective lens into the slide, which can damage both the slide and the lens.
The lens used to locate a specimen on a microscope is typically the lowest magnification lens, known as the scanning lens or low power objective. This lens provides a wide field of view, making it easier to find and center the specimen before switching to higher magnification lenses for detailed viewing.
There is a relationship between the power of an objective lens and its field of view. As the power of the objective lens increases, the size of its field of view decreases
You use the 3 objective lenses of a compound microscope to switch powers. There's LOW, MEDIUM, and HIGH power. With LOW power, you can magnify what you're looking at. With HIGH power, you can see things that you can't see with a naked eye.
The objective lens with the lowest magnification typically has the greatest field of view. For example, a 4x objective lens will provide a wider field of view compared to higher magnification lenses like 10x or 40x. This is because lower magnification allows more of the specimen to be visible in the microscope's field.
You can estimate the size of the object by comparing the field diameters observed under the low power objective lens (4x) and high power objective lens (40x). Calculate the ratio of the field diameters (40x/4x = 10), and use this ratio to estimate the size of the object viewed under the high power objective lens. Simply multiply the size of the object viewed under the low power objective lens by the ratio (field diameter at 4x) to get an estimation.
The ocular is the upper lens and objective is the lower lens
Start with the lowest magnification objective lens, typically 4x or 5x, as it provides a wider field of view and makes it easier to locate the specimen.
Field diameter is calculated by measuring the distance across the field of view of a microscope, then dividing that measurement by the magnification of the objective lens being used. This gives you the field diameter in micrometers.
The arrow would likely point to the cylinder lens, which is the objective lens of the microscope. This lens is responsible for magnifying the specimen being observed.
low power objective lens
The 4x objective lens provides the largest field of view because it has a lower magnification power, allowing you to see a larger area of the specimen at once. The 40x objective lens has a higher magnification power, resulting in a smaller field of view but greater detail.
The field of view of the oil immersion 100x lens would be 0.4 mm. This is because the field of view decreases as the magnification increases.
Because during movement of lens there is no slide below objective .