Features Of A Dissecting Microscope

Dissecting microscopes are constructed in such a way that these allow the magnification of three-dimensional objects. They can accommodate what compound microscopes can do with such ease.

Dissecting microscopes have two lenses that are separated to allow the objects to be perceived within three dimensions. Dissecting microscopes do not really magnify to the same extent as that of compound microscopes but studies show that they come really close to it.

Illumination

Dissecting microscopes make use of two kinds of light – the direct illumination or what is known as the incident light and the transmitted light. Take for example an opaque object that has been placed under the microscope stage. The incident light can directly illuminate it. The illuminator is then mounted in the arm of the dissecting microscope. Some models have an adapter ring attached to the base of the illuminator, also known as the transformer.

Also, the light from other sources like a lamb can be used as a reflector through any object that is translucent, as long as the substage mirror is present. This illuminating method requires a glass to be inserted inside the stage. However, there are instances wherein the opaque stage has a black side and a white side.

Dissecting microscopes must be handled with care. When carrying these, they must be carried using two hands. It prevents dropping and bumping accidents. If this happens, there is a possibility that the lenses will be out of alignment. By grasping the arm of the microscope with one hand and supporting the contraption by holding on to its base with the other, the dissecting microscope is protected.

Dissecting microscopes have stages where the specimen is viewed. Shallow containers are often used in order for it to fit perfectly on the stage and the user will not have a hard time viewing it through the objective lens.

The illuminator of the dissecting microscope directs the beam toward the subject. Some illuminators can be adjusted – depending on the intensity that is needed. Whatever the amount, the user is advised to not use more light than he actually needs because the quality of the image will degrade faster when exposed to too much illumination.

Dissecting microscopes have knobs that allow the user to adjust the magnification level from the lowest power to the highest power. This is done manually by twisting the knob. Therefore, this should be done slowly and carefully so as to not loosen the screws of the knob of the dissecting microscope which can lead to the misalignment of the lenses.

The interpupillary distance between the ocular lenses must also be adjusted. This can be done by looking through these. If one image is seen, then there is no need to adjust the distance. If, however, two images are visible, or there is a black foreground, adjust the interpupillary distance between the two ocular tubes until there is only one image.

This is also done by moving the eyes closer and farther from the ocular lens in order for the user to gauge the clarity of the specimen through the lenses. These can be adjusted closer or farther apart. The key to using a dissecting microscope is focusing on the specimen. More often than not, this is a two-step process. First and foremost, the user must focus on the subject with the microscope’s objective lenses. Then, he will compensate for what was not accomplished in terms of strength and make use of what has been obtained.

In order for the dissecting microscope to be used in such a long time, it is also advisable that the user takes good care of the contraption after every use. Microscopes are an investment and they will help anybody who develops a keen interest in inspecting the minute specimen surrounding us.

Therefore, after using the dissecting microscope, it is only practical that one turns off the illuminator. Better yet, unplug the illuminator and wrap the cord neatly around it. To keep it away from dust, store it in a microscope cabinet. Clean the stage after every use, especially if the subjects are marine specimens or contain corrosive chemicals. The microscope body must be lowered all the way down. If you have a dust cover, cover it to protect it from other elements. You must also remember to carry the dissecting microscope with both hands.

Dissecting microscope, like the compound microscope, has a lot of good use to both the students and professional users. These will last a long time when taken good care of.