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Kern OBF-1 Compound Variable Laboratory Microscope

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KERN-OBF
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Note: this product is available in three variations. Please see the table below for more information on the difference between each.

This compound microscope is designed for use in laboratories and vocational training applications.

Built to the highest standards, Kern’s OBF microscopes are equipped with adjustable field diaphragm plus pre-centred and height-adjustable Abbe condenser (with adjustable aperture diagram) to ensure high quality images in both bright and dark field applications.

Depending on the model you buy, the OBF will be supplied with various achromatic or plan objective lenses. Up to four of these can be fitted simultaneously into the microscope’s rotatable viewer, allowing you to instantly switch between each for the best view.

Every version of the Kern OBF also comes equipped with an illumination source; models OBF 121 and OBF 122 have a 6V/20W halogen light, while the OBF 123 comes with a 3W LED illuminator.

Kern OBF-1 Compound Variable Laboratory Microscope Key Features

  • Designed for use by professionals in the lab, or for use in vocational training
  • Adjustable field diaphragm, plus pre-centred and height-adjustable Abbe condenser
  • Binocular-style viewfinder
  • Supplied with achromatic or plan objective lenses (varies depending on model)
  • Quadplex nosepiece allows attachment of up to four lenses simultaneously
  • Halogen or LED illumination (varies depending on model)
  • Fine adjustment and course adjustment knobs
  • Integral carrying handle for transportation
  • Mains powered
  • 3 year Kern warranty included
  • 360° rotation

Microscope Difference Table

This table outlines the difference between Kern OBF series microscopes.

Note: full specs are only currently available for OBF 121, OBF 122 and OBF 123. For more information on other models, please call us directly.

√ = standard configuration

Optional = can be configured with this option - please call for any enquires about different configurations.

Model Outfit Kern Model Number
OBF 121 OBF 122 OBF 123
Eyepieces WF 10x / 18mm diameter
WF 16x / 13mm diameter Optional Optional Optional
WF 10x / 18mm diameter (reticule 0.1mm) (non-adjustable) Optional Optional Optional
WF 10x / 18mm diameter (reticule 0.1mm) (adjustable) Optional Optional Optional
WF 10x / 20mm diameter (reticule 0.1mm) (adjustable) Optional Optional Optional
Achromatic Objectives 4x - -
10x - -
40x (spring) - -
100x / 1.25 (oil) (spring) - -
20x Optional Optional Optional
60x (spring) Optional Optional Optional
Plan Objectives 4x -
10x -
40x / 0.65 (spring) -
100x / 1.25 (oil) (spring) -
20x - Optional Optional
60x (spring) - Optional Optional
Binocular Tube Siedentopf, 30° inclined, 360° rotatable
Interpupillary distance: 0 to 75mm (for non-infinity system)
With diopter adjustment (one-sided)
Trinocular Tube Siedentopf, 30° inclined, 360° rotatable
Interpupillary distance: 50 to 75mm
Light distribution: 20:80 (for non-infinity system)
With diopter adjustment (one-sided)
Optional Optional Optional
Nosepiece Quadplex
Mechanical Stage Stage size (W x D): 145 x 140mm
Travel: 76 x 52mm
Coaxial coarse and fine focusing knobs, scale: 2μm
Two slide holder
Condenser Abbe N.A. 1.25 precentered (aperture diaphragm)
Illumination 6V/20W Halogen (Transmitting) -
3W LED illumination system (transmitting) (non-rechargeable) - -
Field Diaphragm Field diaphragm
Darkfield Unit N.A. 0.9 (dry)
Usable for 4x to 40x objectives
Optional Optional Optional
Polarising Unit Analyser/polariser Optional Optional Optional
Fluorescence Unit 100W HBO Epi Fluorescence unit, three-hole slide (B/G) including centering objective Optional Optional Optional
3W LED Epi Fluorescence unit, three-hole slide (B/G) including centering objective Optional Optional Optional
Filter Blue
Green Optional Optional Optional
Yellow Optional Optional Optional
C-Mount 0.57x (focus adjustable) Optional Optional Optional
1x Optional Optional Optional
Part CodeOBF 121
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