กล้องจุลทรรศน์ Levenhuk 2S NG Microscope 25648
Levenhuk 2S NG Microscope Levenhuk 2S NG Microscope is an attractively priced basic microscope for beginners, children and students. The microscope works in bright field mode allowing you to observe transparent specimens, and has a very good price/quality ratio. Featuring 200x magnification Levenhuk 2S NG Microscope will show amateur observers everything they need to start their scientific investigations.
1.6-inch plano-concave mirror used as the illumination source in the Levenhuk 2S NG Microscope provides the light required for observations and has several advantages that make it safe for children to use. Plano-concave mirror is known as the safest illumination method; it doesn't require a separate power supply and can be easily controlled by adjusting the disc diaphragm.
Levenhuk 2S NG Microscope has a 16x eyepiece that provides quality views without aberrations, and coarse focusing system with 0.8-inch focusing intervals that makes the images sharper.
This model features inclined head and stage, so you can comfortably adjust the microscope to your desired position during observations. The stage also has stage clips to keep samples (one or two since stage dimensions allow that) in place. Reliable metal construction ensures the microscope's stability.
Levenhuk 2S NG Microscope kit includes:
Specifications: User Manual: User manual: Levenhuk 2S/3S Biological Microscope
Looking for something to start your observations with?Paramecium caudatum is perhaps one of the first protozoans that a young naturalist would explore. These organisms live in fresh standing water. They can also be found in an aquarium, especially if it hasn’t been cleaned for a long time. My ciliate-shoes were taken from the aquarium. Of course, there are only a few ciliate-shoes in aquarium water – the possibility of finding one of them in your microscope’s eyepiece is extremely low. Therefore, we need to increase their concentration. To do so, take a jar (about 17 fluid ounces or 0.5 liters), fill it with aquarium water, put a small spoiled onion and banana peel inside. Put the jar in a warm dark place for 5 to 7 days (don’t close it with a lid).
![]() ![]() Paramecium caudatum. Animation. Magnification: 64x.
The average size of Paramecium caudatum is 0.02 inches (0.5 mm). For locomotion Paramecium caudatum uses its cilia (about 15 thousand cilia cover its little body!). Moreover, it has two nuclei (a large macronucleus is responsible for nutrition, respiration, metabolism, etc.; and a small micronucleus – for reproduction). Paramecium caudatum feeds on bacteria or algae. The food is caught by an oral groove covered in cilia and then goes to the cell mouth. It is then digested in the digestive vacuole (gullet). Undigested leftovers are ‘thrown out in the open’ through an anal pore (cytoproct). To remove all excess water, our heroine has two contractile vacuoles. They work like pumps on a boat, pumping excess water out of its body. Paramecium caudatum maintains its slipper-like shape thanks to a special membrane (pellicle).
![]() Study this image to learn all parts of Paramecium. Source: https://www.levenhuk.com/reviews/paramecium/
Some things you can see under a microscope:
More informationYou can find a review on this microscope here. |
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