The low power or lowest power objective
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.
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 microscope stage should be in its lowest position to avoid damaging the objective lens when you first begin to focus on an object. Begin focusing with the coarse adjustment knob and then use the fine adjustment for finer focusing.
10x
You should use the lowest value lens. It is the shortest one.
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 ocular is the upper lens and objective is the lower lens
low power objective lens
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.
Begin by using the lowest power objective lens and then switching to the next highest power lens.
The microscope stage should be in its lowest position to avoid damaging the objective lens when you first begin to focus on an object. Begin focusing with the coarse adjustment knob and then use the fine adjustment for finer focusing.
so the objective lens will not touch the slide.
10x
Because during movement of lens there is no slide below objective .
scanning objective
A review should begin with an objective summary, so the audience has a solid background of the material that will be critiqued later.
You should use the lowest value lens. It is the shortest one.