ADJUSTING THE ILLUMINATION
In order to obtain maximum performance from your microscope’s optics - good, clear and crisp image - it is very important that the sample is illuminated correctly. For this reason, we would like to share with you some recommendations that will help you get the best image that your microscope can give.
LIGHT AND FILTER
Turn on the microscope, focus your sample and adjust the light intensity (potentiometer) to an optimal level (1).
Then place the daylight filter (blue filter) on the filter holder. This filter is usually included in the standard package of a halogen or tungsten light microscope. This filter corrects the color temperature (2), so that the yellow light from the tungsten or halogen bulb becomes white. Microscopes with LED illumination sources generally do not need this filter, because the color temperature is already high.
FIELD DIAPHRAGM - FOR MICROSCOPES WITH KOEHLER ILLUMINATION
Place the 10X objective on the light path, focusing the sample and closing the field diaphragm until it appears in the field of view (3).
Focus the edges of the diaphragm by using the condenser’s focusing system. Both images must be focused, sample and diaphragm (4). Once this is done, you need to center the field diaphragm by using the two centering screws of the condenser (5).
Finally, open the field diaphragm until it remains just outside of the field of view (6).
Depending on the condenser, it can show different scales indicating either the aperture, or the magnification of the objectives as an indicative position. The aperture diaphragm should be adjusted in accordance to the numerical aperture of the objective.
In order to obtain a well-balanced image in terms of brightness and contrast, use the same numerical aperture of the objective (although we recommend to use a little bit less than what is indicated to get better results).
This adjustment is the most variable and subjective one. Depending on the sample you might need more brightness or more contrast. Some basic microscopes do not have an iris diaphragm indicator. In this case we suggest as a guide (6).
To obtain perfect illumination, each of these steps should be repeated each time we change objectives.
The BA310 is designed for the rigors of daily routine work in the demanding applications of universities, clinics, laboratories, and many other life sciences or medical applications requiring quality optical performance. BA310's full Kohler configuration provides maximum illumination quality for even the most demanding samples. Additional contrast methods like Phase contrast, polarization, and darkfield and discussion/teaching devices ensure that the BA310 offers long term functionality to all user levels.
The Motic’s established BA410 flagship model displays the highest level of optical performance. A complete set of Plan Apochromatic lenses is now available for maximum demands in color reproduction and resolution. The BA410E allows a profound diagnosis in pathology, hematology, and cytology with their requirements for best color fidelity. Increased numerical apertures provide an expanded resolution power for a more detailed specimen evaluation.
Panthera C2 is a new world-class level cased in a revolutionary technical future-orientated solution, now accessible for life sciences. Stunning Ultra Contrast Optics for best insights, convincing performance of the dual-slide holder for one-hand operation, and intelligent light management with an LED “Feedback indicator”: a setup ready to smoothen your daily workflow.
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