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  • Jenco International CK-103 Trinocular Compound Microscope, WF10x Eyepieces, Infinity Plan Objectives, 40x-1000x Magnification, Brightfield, Halogen Illumination, Abbe Condenser, Iris Diaphragm, Mechanical Stage, 170V-270V AC
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Jenco International CK-103 Trinocular Compound Microscope, WF10x Eyepieces, Infinity Plan Objectives, 40x-1000x Magnification, Brightfield, Halogen Illumination, Abbe Condenser, Iris Diaphragm, Mechanical Stage, 170V-270V AC


List Price: $1,103.64
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Specifications for this item
Brand Name Jenco International
Part Number CK-103
Number of Items 1

The Jenco International CK-103 Trinocular Compound Microscope has a pair of... Read full product description



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Product Features

  • Compound microscope provides high magnification for biological use and educational applications
  • Trinocular viewing configuration with a Siedentopf binocular head that has a pair of 20mm 10x widefield eyepieces and fixed inclination to reduce eye and neck strain, and a trinocular port that accepts a camera adapter (sold separately)
  • Reverse-mounted nosepiece with 4x, 10x, 40xR, and 100xR (oil) infinity plan achromatic objectives that provide color correction, focus over the entire range of the viewing field, and a longer working distance for improved focus when auxiliary components are utilized
  • Brightfield, halogen illumination with 1.25 NA Abbe condenser and iris diaphragm for clear examination and light control
  • Mechanical stage locks slide into place and provides precise slide manipulation along the X- and Y-axes, and coaxial nested coarse and fine focus knobs speed focusing


Product Details

  • Shipping Weight: 17.5 pounds (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B007XYZD44
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

The Jenco International CK-103 Trinocular Compound Microscope has a pair of 10x widefield eyepieces, a trinocular port, a reverse-mounted nosepiece with four infinity plan achromatic objectives, halogen illumination, 1.25 NA Abbe condenser with iris diaphragm, coaxial nested coarse and fine focus, and a mechanical stage. The trinocular viewing head has a Siedentopf binocular head with interpupillary adjustment, fixed inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing; and a trinocular port that accepts a camera adapter (sold separately). A Siedentopf binocular head enables the viewer to change the interpupillary distance without changing the tube length, eliminating the need to refocus the image. A reverse-mounted nosepiece keeps objectives out of the way to prevent damage and contamination, and to enable more secure slide handling. Infinity plan objectives provide focus over the entire range of the viewing field, and a longer working distance for improved focus when auxiliary components are utilized. Achromatic objectives provide color correction of magnified images. The 40xR and 100xR objectives are retractable and spring-loaded to prevent damage to the slide or objective when focusing. The 100xR objective is also an oil objective that provides increased resolution over a standard objective. A compound microscope is used for inspection and dissection of specimens when two-dimensional images are desired.

The microscope has lower (diascopic) brightfield illumination that transmits light up through the specimen for enhanced visibility of translucent and transparent objects. Brightfield (BF) illumination allows the specimen to absorb light, resulting in a dark image on a light background. The halogen light source provides bright light in a concentrated path. The Abbe condenser can be adjusted to control the distance of the light from the stage, and has an iris diaphragm to optimize the amount of light illuminating the specimen. The mechanical stage locks the slide into place and provides precise slide manipulation along the X- and Y-axes, and can hold two slides for making comparisons between specimens. Coaxial coarse and fine focus knobs are nested to speed focusing for left-and right-handed viewers.

Microscope Head and Optics Specifications
HeadTrinocular, Siedentopf
Magnification range40x-1000x
Binocular head inclination30 degrees
Interpupillary adjustment50 to 75mm
Eyepieces (20mm)WF10x
NosepieceQuadruple, reverse-mounted
Objectives, infinity plan achromatic4x, 10x, 40xR, 100xR (oil)

Microscope Illumination and Stage Specifications
Focus typeCoaxial coarse and fine
Condenser1.25 NA Abbe
Light sourceHalogen
DiaphragmIris
Illumination typeBrightfield
Stage typeMechanical
Stage dimensions145 x 140mm (W x D)
Stage travel range76 x 52mm (X-direction x Y-direction)
Power170V-270VAC

W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries.

Jenco International, Inc. designs, assembles, and services microscopes, digital cameras, and accessories for education, inspection, research, and clinical and industrial applications. The company, founded in 2004, is headquartered in Milwaukie, OR.

What's in the Box?

  • Jenco International CK-103 Trinocular Compound Microscope
  • (2) WF10x eyepieces, 20mm
  • 4x infinity E plan achromatic objective
  • 10x infinity E plan achromatic objective
  • 40xR infinity E plan achromatic objective
  • 100xR (oil) infinity E plan achromatic objective
  • Immersion oil
  • Spare lamp
  • Spare fuse
  • Dust cover

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