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Kern OZG-4 Stereo Zoom Jewellery/Gem Microscope

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Note: there are two versions of Kern's OZG-4 stereomicroscopes available. You can choose an option using the dropdown box above and use the table below for reference.

Kern's OZG-4 series microscopes are specifically designed for use within the jewellery industry, allowing professional jewellers to study gems and other precious materials in an extremely high level of clarity.

The overall design and abilities of this microscope depends on which of the two models you select. For example, model OZG 493 has a binocular eyepiece, while model OZG 497 has a trinocular eyepiece with space for a digital camera. You can view more info about the specific differences in the table below.

Kern's OZG 497 also has a mechanical stand plus flexible tip and rotate function for a more complete view of the sample you're studying. Both models come with objective zoom with 0.7 to 3.6x for model OZG 493 and 0.75 to 5.0x for model OZG 497.

Both units are supplied as standard with a 3 year warranty from Kern.

Kern OZG-4 Stereo Zoom Jewellery Microscope Key Features

  • Specially designed for use within the jewellery industry
  • Binocular or trinocular version available
  • Get in close with high quality objective zoom up to 5.0x (depending on model)
  • Mechanical stand and tip rotate function (only for OZG 497)
  • Powerful illumination options
  • Supplied with darkfield attachment and steel wire object clamp for extra stability
  • Powered by standard 230V mains connection
  • Includes 3 year Kern warranty

Model Variations

This table shows the difference between both models in the Kern OZG-4 series.


√ = included as standard

O = Optional extra

Several parts of the scope can be ordered separately if you wish. If interested, call us quoting the individual part number from the table below.

Model Outfit Microscope Model Number Individual Part Number
OZG 493 OZG 497
Eyepieces WF 5x / 16.2mm OO - OZB-A 4101
HWF 10x Ø / 21.5mm √√ - OZB-A 4106
WF 15x / Ø 15mm OO - OZB-A 4103
WF 20x / Ø 10mm OO - OZB-A 4104
HWF 5x / Ø 23.2mm - OO OZB-A 4112
HSWF 10x / Ø 23mm - OO OZB-A 4118
HWF 15x / Ø 15mm - OO OZB-A 4119
HSWF 20x / Ø 14.5mm - OO OZB-A 4120
HWF 25x / Ø 11.7mm - OO OZB-A 4121
C-Mount 1x - O OZB-A 4809
0.3x - O OZB-A 4810
0.5x - O OZB-A 4811
Darkfield Attachment - OBB-A 4601
Object Clamp Steel wire OBB-A 4604
Stand Pillar style, with 12V/10W halogen light (transmitting + incident) and 10W Fluroescent illumination (front) -  
Arm curved, with 12V/10W halogen light (transmitting) and 10W fluroescent illumination front + single fiber illumination -  
Part CodeOZG 493
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