The low power objective typically has a lower magnification level (e.g., 4x or 10x) compared to the high power objective (e.g., 40x or 100x), and it usually has a wider field of view. The high power objective will provide a closer magnified view of the specimen but with a narrower field of view. You can often find the magnification level labeled on the side of the objectives.
Usually the first number is the magnification (in this case 30X) and if it has a zoom from 10X to 30X it would look like 10 - 30X25. The second number is the objective diameter (in mm) of the binocular. The larger the diameter usually means more light is let in and more field of view. 8X42 for example has an 8 times magnification with an objective diameter of 42mm for each side (each monocular). The DCF is a way of describing a roof shape of the internal prism binocular. It means "Dach Centre Focus" (Dach is German for roof).
Arm = supports top part of microscope Base = the part the microscope stands on Lens turret= a rotating support for the objective lenses objective lens or lenses are those closest to the object being viewed. Their degree of magnification is usually marked on the side of the lens, eg. 100x magnifies the object 100 times. The longer the lens, the greater its magnifying power. Eyepiece (or ocular lens) = This is the lens closest to the eye and its magnifying power is generally marked on the side. To determine the total magnifying power of a compound microscope, multiply the power of the ocular lens with the power of the objective lens. For example, a 10x ocular with a 100x objective would give a total magnification of 1000. A microscope may also have a binocular eyepiece with a lens for each eye. Stage Clip= holds the glass slide which contains a specimen to be viewed. Stage- holds the specimen. Coarse adjustment knob- makes large adjustments to the focus of the lenses. Fine adustment knob- makes small adjustments to the focus of the lenses Below the stage is located either a mirror or an electric light which directs light through the specimen on the stage.
because it allows you to find the part of the slide you want to see, then you can zoom in by changing focus to see the frame in greater detail. if you don't start in low power it is extremely difficult to move around the slide
The 7 is the magnification produced - it is a ratio of the focal lengths of the lens at the eyepiece and the front (objective) lens. The 50 is width of the objective lens - in millimetres.
Sometimes, if the stage is set high enough, the objective lens can hit or scratch the slide when it's changed, because each objective lens is a different length. From the back of the microscope, you cannot see if the lens is going to hit the slide or not, and run the risk of disturbing your sample. This problem can be prevented by looking from the side and stopping if it looks like the lens is going to hit the slide.
Sometimes, if the stage is set high enough, the objective lens can hit or scratch the slide when it's changed, because each objective lens is a different length. From the back of the microscope, you cannot see if the lens is going to hit the slide or not, and run the risk of disturbing your sample. This problem can be prevented by looking from the side and stopping if it looks like the lens is going to hit the slide. Watching from the side also helps to know if it is too low, or just in the right distance.
Sometimes, if the stage is set high enough, the objective lens can hit or scratch the slide when it's changed, because each objective lens is a different length. From the back of the microscope, you cannot see if the lens is going to hit the slide or not, and run the risk of disturbing your sample. This problem can be prevented by looking from the side and stopping if it looks like the lens is going to hit the slide.
Sometimes, if the stage is set high enough, the objective lens can hit or scratch the slide when it's changed, because each objective lens is a different length. From the back of the microscope, you cannot see if the lens is going to hit the slide or not, and run the risk of disturbing your sample. This problem can be prevented by looking from the side and stopping if it looks like the lens is going to hit the slide.
Looking at a microscope from the side when moving an objective helps prevent accidentally crashing the objective lens into the slide, which can damage both the lens and the slide. It also allows you to have a better view of the distance between the objective lens and the slide, ensuring smooth and precise movement without causing any harm.
Sometimes, if the stage is set high enough, the objective lens can hit or scratch the slide when it's changed, because each objective lens is a different length. From the back of the microscope, you cannot see if the lens is going to hit the slide or not, and run the risk of disturbing your sample. This problem can be prevented by looking from the side and stopping if it looks like the lens is going to hit the slide.
The serial number on a Tamron lens is typically located on the side of the lens barrel near the mount. It is usually engraved or printed on a sticker.
The low power objective typically has a lower magnification level (e.g., 4x or 10x) compared to the high power objective (e.g., 40x or 100x), and it usually has a wider field of view. The high power objective will provide a closer magnified view of the specimen but with a narrower field of view. You can often find the magnification level labeled on the side of the objectives.
Looking at the microscope from the side when moving an object helps to keep the object in focus. This allows you to clearly see the movements and make precise adjustments to bring the object into view. Viewing from the side also helps prevent accidental contact with the objective lens, which could damage the specimen or the lens.
Many light microscopes will smash the slide when the coarse knob is adjusted so as to bring the objective lens downward. This is most possible when using the highest power objective but could be a problem even with low power if a thick slide (double slide instead of a cover slip) is on the stage.
The focusing mechanism maintains the correct distance between the eyepiece and the objective lens in a microscope. This mechanism allows users to adjust the distance to achieve a sharp and clear image of the specimen under observation.
Usually the first number is the magnification (in this case 30X) and if it has a zoom from 10X to 30X it would look like 10 - 30X25. The second number is the objective diameter (in mm) of the binocular. The larger the diameter usually means more light is let in and more field of view. 8X42 for example has an 8 times magnification with an objective diameter of 42mm for each side (each monocular). The DCF is a way of describing a roof shape of the internal prism binocular. It means "Dach Centre Focus" (Dach is German for roof).