We offer five microscopes for doing semen analysis. See a brief description of the differences between our microscopes. We sell a digital microscope, and three styles of monocular microscopes.
National Optical Microscopes
The microscopes we sell are solidly constructed, high quality, National Optical microscopes at great prices. You must have a good quality microscope to do your own sperm count and semen analysis at home. Sperm are nearly clear so you must have a microscope with high quality optics and a way to adjust the amount of light to be able to see them. A microscope with poor quality optics will make you crazy and give you a headache from the eye strain.
All of the microscopes below, except the 109-L, feature cool illumination. All of our microscopes feature separate coarse and fine focus adjustments.
See other microscopes available from Amazon.com.
See only National Optical microscopes and accessories available from Amazon.com
To help you decide we offer a table comparing the features of each of the microscopes we sell. Click on the links below to see a detailed description of each microscope.
We are always on the lookout for microscopes of sufficient quality to do semen analysis. You can see some of the microscopes we tried and rejected on this page.
You should also consider the Micra. It is a low cost microscope with optics that are adequate for home semen analysis.
National Optical Microscopes Available from Kokopelli Technologies
As of January 1, 2013 National Optical began enforcing a Minimum Advertised Price (MAP) for their products. We support this action. The prices below reflect this MAP. However, to be sure our prices are as low as you can find anywhere we automatically give you an additional 10% discount when you put the item in the shopping cart. The price you pay is 10% less than the prices shown below.
We have carefully selected our microscopes to offer you the best quality at very reasonable prices. You can expect many years of excellent service from National microscopes.
All these microscopes have the features you need to do semen analysis:
Achromatic, optical glass lenses- Our microscopes have high quality optical components. When you use our microscopes you will be able to clearly see and identify sperm. You must be able to clearly see the sperm to do accurate semen analysis. You can see photos and videos taken through our microscopes.
100 and 400 power viewing- Our monocular microscopes have 40X, 100X, and 400 power. Our binocular and digital microscopes have 40X, 100X, 400X, and 1000 power. You will use the 40 power to practice focusing and to get a "bird's eye view" of things. You will use 100 power to get a wider view to convince yourself you are looking at a representative sample. In cases of low motility you can use 100 power to search for motile sperm. You will use 400 power to count sperm to determine the number of sperm per milliliter.
While you can see the sperm more clearly at 1000X you do not need more than 400 power to do semen analysis. You should use immersion oil at powers higher than 400X. See a primer on Oil Immersion and Refractive Index.
Separate coarse and fine focusing- All but the Model 107 LED microscope feature separate coarse and fine focusing controls. You will appreciate being able to zoom in with the coarse focus and then use the fine focus to really zero in.
Cool light source- We carry microscopes that have a fluorescent light, an LED light, or a mirror so you don't cook the sperm. Many other brands of microscopes use tungsten or halogen lights. Tungsten and halogen lights are too hot for live samples. They will bake the sperm.
The Model 109 uses a mirror for cool illumination. The Model 109-L has a tungsten light for illumination. We only recommend the Model 109-L if you are not concerned about motility.
What people say about the Model 131-CLED microscope:
"The microscope arrived today at work safe and sound and fully functional. I found it to be very easy to use, I like it. I was able to see the sperm clearly. It's no Nikon Phase Contrast :- ) but it does the job for sure!"
J. Stan Grossman, BS, MT
General & Technical Supervisor
Arizona Andrology Laboratory & Cryobank
A way to control the light intensity- It is much easier to see sperm under low light levels. To be able to see sperm clearly you must be able to adjust the light intensity. All of our microscopes allow you to easily control the light intensity.
In-stage condenser lens- The in-stage condenser lens focuses the light onto the specimen and just fills the numerical aperture of the objective lens. At 400 and 1000 power the in-stage condenser lens significantly sharpens the image. Our Model 109, 109-L, and 107 LED microscopes do not have a condenser lens.
Still trying to decide between the monocular microscopes? If the Model 131-CLED were a Chevy, the Model 109 would be Volkswagen bug (the old ones, not the new version) and the Model 155 would be a Cadillac. If you can afford it you should purchase a Model 131-CLED or Model 155 microscope. You will be very happy with either of these. If you simply cannot afford the nicer microscopes buy a Model 109 or a Model 107 LED. These will do the job, they are just not as easy to use as the Model 131-CLED or Model 155.
Trying to decide between a Model 131-CLED and a Model 155? If you had the opportunity to use both of them side by side (we have) for about 20 minutes you would chose the Model 155. You would never regret spending the extra money.
After we tried the Model 155 we traded up from our Model 131-CLED and now use the Model 155. The Model 155 has contemporary styling and is slightly larger than the Model 131-CLED. You experience less eye strain and have an easier time focusing the Model 155 because of its excellent quality optics.