A sample should be examined with low power first when observing any sample for the first time under the microscope. Now if you want to focus on one particular region in the sample then you can step it up to high power lens. Objective lens are not that expensive and good way to look at some simple tissue structures.
The only objective lens that should be used with oil immersion is the 100x objective lens. This lens is designed to be used with immersion oil to improve resolution and clarity by reducing light refraction. Using oil with other objective lenses can damage them or lead to inaccurate observations.
A magnification of 100x typically requires the use of a 100x objective lens on a microscope. Different microscopes may have varying objective lens magnifications, but for a total magnification of 100x, the 100x objective is commonly used.
The objective lens with the lowest magnification, usually 4x. Be sure to clean all the lens with lens paper before putting the microscope away.
You should start by using the lowest power objective lens, usually the 4x or 10x objective, to locate and center the specimen on the slide. Once the specimen is in focus, you can switch to higher magnifications for more detailed viewing.
If you are using the oil immersion objective on a microscope, you must use oil to increase the resolution of the lens. These lens are used at very high magnification.
You should use the lowest value lens. It is the shortest one.
The only objective lens that should be used with oil immersion is the 100x objective lens. This lens is designed to be used with immersion oil to improve resolution and clarity by reducing light refraction. Using oil with other objective lenses can damage them or lead to inaccurate observations.
The fine adjustment knob should be used with high power magnification because it allows for smaller, more precise movements of the objective lens. This helps to prevent damage to the slide and objective lens, as well as minimize the risk of crashing the objective lens into the slide.
To achieve a total magnification of 100x, you would use a 10x ocular lens (eyepiece) with a 10x objective lens. The total magnification is calculated by multiplying the magnification of the ocular lens (10x) by the magnification of the objective lens (10x).
Storing a microscope with the low power objective lens in place helps protect the lens and prevents accidental damage or contamination during storage. The low power lens is less delicate compared to other high-power lenses, making it a safer option for storage to ensure the microscope remains in good condition for future use.
The ocular is the upper lens and objective is the lower lens
So you do not crack the high power objective lens - this lens is very fragile and expensive.
low power objective lens
A magnification of 100x typically requires the use of a 100x objective lens on a microscope. Different microscopes may have varying objective lens magnifications, but for a total magnification of 100x, the 100x objective is commonly used.
When returning a microscope, the objective lens should be in the lowest position, typically the scanning objective, to prevent damage to the slide and lens. The stage should be lowered as well, ensuring it is at its lowest point to avoid any contact with the lens. This positioning helps protect both the microscope and any slides that may be on the stage.
The objective lens with the lowest magnification, usually 4x. Be sure to clean all the lens with lens paper before putting the microscope away.
So you don't crack the slide or damage the lens