กล้องจุลทรรศน์ Levenhuk LabZZ M4 Microscope 70789

• เหมาะสำหรับเด็กวัยก่อนเริ่มเข้าเรียน (3 ขวบขึ้นไป ภายใต้การแนะนำของผู้ใหญ่)
• เหมาะสำหรับส่องตัวอย่างทั่วไป เช่น เหรียญ แร่ธาตุ หิน แมลง พืชต่างๆ
• ส่องขยายแบบ 2 ตาพร้อมกัน สบายตา เห็นมิติของวัตถุมากขึ้น ส่องได้นานขึ้นโดยไม่ล้า
• เลนส์วัตถุ (Objectives) ที่ 2x  / เลนส์ใกล้ตา (eyepiece) ที่ 20x (1 คู่)
• ช่วงอัตราขยาย 40x
• มีที่ปรับฟอกัสขนาดใหญ่ จับถนัดมือ
• มีแหล่งแสงส่องเหนือวัตถุ ใช้หลอด LED ประหยัดพลังงาน ใช้ถ่าน AA 2 ก้อน (ไม่รวมในชุด)
• มีที่พักตัวอย่างทรงกลม (stage) พร้อมคลิปจับ (specimen clips) ทำด้วยโลหะ 2 ตำแหน่ง
• รองรับ กล้องดิจิตอ Levenhuk ใช้เพื่อถ่ายภาพนิ่งและภาพเคลื่อนไหว
• แบรนคุณภาพจาก USA ; ประกัน 1 ปี

Levenhuk LabZZ M4 Stereo Microscope is a great choice for studying large objects. This microscope provides stereo images and has a wide working distance of 75mm. It will be convenient for observing coins, minerals, rocks, insects or plants.

Thanks to its small size and light weight, Levenhuk LabZZ M4 Stereo Microscope will be a perfect device for any young scientist interested in biology.

The binocular head allows observing objects with two eyes – it gives eye strain relief, and makes long-term researches as comfortable as possible.

The light diodes located above the stage evenly illuminate the observed specimen.

The stage has metal clips to firmly hold the prepared slide. The objective lens provides 2x magnification, and with the supplied accessories, you will be able to reach magnification up to 40x. Two wide-field eyepieces allow studying extended objects.

The illumination is powered by two AA batteries (not included).

The kit includes:

• Levenhuk LabZZ M4 Stereo Microscope
• Two WF20x eyepieces
• Dust cover
• User manual

Levenhuk LabZZ M4 Stereo Microscope is compatible with Levenhuk digital cameras (purchased separately). Levenhuk digital cameras are installed in the eyepiece tube instead of the eyepiece.

Specifications

References and Downloads

 High-resolution images (zip) 127867KB

 User manual: Levenhuk LabZZ M4 Stereo Microscope (pdf) 975KB

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/