Frequently Asked Questions
The options include power level or total magnification, corded or cordless, various magnifications, objectives, eyepieces, plan stage or mechanical stage and light sources. There are also several accessories and extras that can be effective for your application.
Compound microscopes are designed to view tiny microscopic organisms, like protozoa, amoeba, or paramecium found in pond water or blood, onion or plant cells, etc. They are a high-powered option that transmits light through the sample.
Stereo (or dissecting) microscopes are used for viewing large, opaque specimens in 3D. They are meant for close-up looks at small items such as rocks, leaves, coins, circuitry, insects, and more.
Make sure the cover slip on the slide is facing upwards. If it is facing the wrong direction, it will be very difficult to focus the 40x objective.
Too much illumination can also be problematic and may white out the specimens. You may need to lower the condenser to close the iris diaphragm or position the disc diaphragm to a smaller hole to decrease the amount of light. This can also increase the contrast, especially when viewing unstained specimens.
If you are looking at gross specimens, such as leaves, rocks, insects, and even slightly transparent specimens, you will need a stereo microscope with a variety of magnifications. This could include 10x/20x, 20x/40x, and 10x/30x zoom and other models are all available.