adjust the course adjustment
You start with the lowest magnification. Once you have found the specimen and focused it, you can move it to the next higher magnification. It should still be in focus, although you might need to use the fine adjustment.
as you zoom in the view gets bigger and if its not in the middle you wont be able to see it properly .
You should first use the lowest power setting of a microscope to find an object and then center it within the viewing area. Then, when you switch to the next higher magnification, your target should still be close to the center and easier to find and focus on.
Depending on the microscope the steps differ but assuming you are using a light microscope (the only microscope you will use before university). The microscope must be set to the lowest magnification with the stage set as far way as possible (the platform the sample is held on). Then using the coarse focus (the larger knob) bring the stage towards the lens while looking though the eye piece when the sample comes into focus use the fine focus knob (the smaller knob) to bring the image to optimum focus. When this is achieved increases the magnification (by changing to a stronger lens) and using fine focus continue to focus the image and keep repeating the steps till a max focus is achieved. If more information is need let me know as there are more complicated techniques but this should be enough for before a university level depending on what country you are in.
Because on high power the magnification is so high you cannot tell where you are on the surface of the object, and so cannot adjust the position to the place you really want.
With higher magnification you can observe bigger.To see clearly resolution also should be high.
The specimen should be in clear focus
You should be watching the objective lens move into place to make sure that it is not going to hit the slide.
You start with the lowest magnification. Once you have found the specimen and focused it, you can move it to the next higher magnification. It should still be in focus, although you might need to use the fine adjustment.
Check your mirrors and signal your intentions.
the DMV recommends at least 5 seconds before the maneuver.
check blind spots and signal
For teaching students about slides under a microscope, the printed lowercase "e" is used because it is identifiable even if only part of it is visible, and because it is asymmetrical both vertically and horizontally. You can see clearly how its image is changed under the microscope.The compound refractive microscope inverts the view seen in the eyepiece, creating an upside-down image. When a higher magnification is used, only part of the "e" will fit in the field. This demonstrates that samples should be centered before changing to a higher power, or they may not be where they can be seen.
For teaching students about slides under a microscope, the printed lowercase "e" is used because it is identifiable even if only part of it is visible, and because it is asymmetrical both vertically and horizontally. You can see clearly how its image is changed under the microscope.The compound refractive microscope inverts the view seen in the eyepiece, creating an upside-down image. When a higher magnification is used, only part of the "e" will fit in the field. This demonstrates that samples should be centered before changing to a higher power, or they may not be where they can be seen.
For teaching students about slides under a microscope, the printed lowercase "e" is used because it is identifiable even if only part of it is visible, and because it is asymmetrical both vertically and horizontally. You can see clearly how its image is changed under the microscope.The compound refractive microscope inverts the view seen in the eyepiece, creating an upside-down image. When a higher magnification is used, only part of the "e" will fit in the field. This demonstrates that samples should be centered before changing to a higher power, or they may not be where they can be seen.
For teaching students about slides under a microscope, the printed lowercase "e" is used because it is identifiable even if only part of it is visible, and because it is asymmetrical both vertically and horizontally. You can see clearly how its image is changed under the microscope.The compound refractive microscope inverts the view seen in the eyepiece, creating an upside-down image. When a higher magnification is used, only part of the "e" will fit in the field. This demonstrates that samples should be centered before changing to a higher power, or they may not be where they can be seen.
For teaching students about slides under a microscope, the printed lowercase "e" is used because it is identifiable even if only part of it is visible, and because it is asymmetrical both vertically and horizontally. You can see clearly how its image is changed under the microscope.The compound refractive microscope inverts the view seen in the eyepiece, creating an upside-down image. When a higher magnification is used, only part of the "e" will fit in the field. This demonstrates that samples should be centered before changing to a higher power, or they may not be where they can be seen.