Good Imaging Using High Power Microscopes

Microscopy, with its hundreds of years of development, has still not lost its practical use. Students still need to learn microscopy before they can advance in their courses, whether in the life sciences, physical sciences, or even engineering. Doctors and clinicians need to learn microscopy in order to carry out diagnostics more effectively and efficiently. Teachers have to be updated on the latest microscopy techniques in order to tutor their students better. Scientists and engineers, whether in the dawn or dusk of their careers, need to have a good working knowledge of microscopy in order for their research to keep on flourishing.

Yesterday’s high power microscopes involved good specimen preparation: this meant that specimens had to be killed, sectioned, fixed onto slides, and then stained. All these processes also resulted in the formation of artifacts, or compounds and structures that were not part of the specimen, but simply results of faulty or overenthusiastic specimen preparation. Studies have long since revolved on how to properly prepare specimens without damaging them, and how to produce the best stained specimens for better viewing under the microscope.

Yesterday’s high power microscopes also involved knowing how to use the objectives properly. High power microscopes could magnify images up to hundreds of times, thanks in part to the oil immersion objective. The oil immersion objective works only if a drop of oil is placed in between the lens and the specimen cover slip, providing continuity between the glass of the lens of the oil immersion objective, and the glass of the cover slip covering the specimen mounted on the slide. This continuity keeps light from dispersing and focuses it better so that the object under the microscope is clearly and largely magnified.

Today’s high power microscopes have entered the digital realm. Thanks to advances made in the fields of engineering and photography, high power microscopes can now accommodate digital cameras. Scientists can simply attach a digital camera to the high power microscope, and then take pictures or videos of their specimens. This is important to scientists working in the laboratory setting who need to document their findings in order to be published. This is also important for scientists working out in the field, who need means to document their findings immediately without having to bag specimens and bring them to the laboratory.

The effectiveness of imaging in high power microscopy depends on all the things mentioned above: specimen preparation, prudent use of the objectives, and good use of the digital camera. As in all things, no amount of beautification of a picture from a digital camera can make a poorly prepared specimen stand out. Good imaging begins with good specimen preparation: if you are dealing with bacteria, do not be too eager to wash out stains or put them in; if you are dealing with tissues, be careful about light or heat exposure, and make sure that you are not over-staining your specimen.

Illumination and use of the objectives likewise play a large part in determining how successful imaging is. By increasing the illumination, you may make it more convenient for you to see the image, but you may also degrade different dyes and stains due to the increased amount of light and heat. Some specimens can also be destroyed with large mounts of light and heat, so go easy on the light and make sure that you get the best details first.

In this case, you may need to experiment with filters and colors in your microscope. You can try different colors to block out your light, as these different colors can also work differently with different stains. Depending on the colors of your stains, you might want to shift between or among different colors, or try closing the aperture in order to cast light at a different angle upon your specimen. This can be valuable when you are looking at thicker specimens, since shadowing can give you a glimpse of the different layers of your specimen.

Make sure that you get a good camera that is compatible with your microscope. Most of the time, bad imaging happens because of low compatibility, so ask you microscope manufacturer if he or she can recommend good camera brands for your use.

A good high power microscope will do nothing for your research if it is not accompanied by powerful imaging techniques. For more information on good imaging techniques and accessories for your high power microscope, visit http://www.high-power-microscope.com. You will be able to find the best high power microscopes to fit your budget and the needs of your research, whether you are working in a laboratory, classroom, clinic, or office setting. These high power microscopes can last for a long time with good, prudent care.