FZ6-GM Gemological Microscope
The Fein Optic FZ6 gemological microscope has a built-in objective zoom range of 0.67x – 4.5x. A variety of eyepieces and auxiliary lenses are available to take magnification as low as 3.4x and as high as 180x. The gem stand swivels and has built-in brightfield and darkfield. The LED goosneck light provides oblique illumination. Gem clamp can be mounted on either side of the stand.
| Optical System | Greenough Optical System |
| Viewing Head | 45° Inclined binocular viewing head rotates 360°. Interpupillary distance adjustment from 54mm – 76mm. Available with or without detent. |
| 45° Inclined trinocular viewing head rotates 360°. Interpupillary distance adjustment from 54mm – 76mm. Beam splitter sends light 100% to eyepieces or splits light between left eyetube and trinocular port, while right eyetube goes dark. Available with or without detent. | |
| Eyepieces | WF10x-F widefield, high eyepoint, focusing eyepieces, FN22, with reticle retaining ring for 24mm diameter reticle. |
| WF15x-F widefield, high eyepoint, focusing eyepieces, FN16, with reticle retaining ring for 24mm diameter reticle. | |
| WF20x-F widefield, high eyepoint, focusing eyepieces, FN12. | |
| Objective Lenses | Standard built-in objective: 0.67x – 4.5x zoom, provides zoom ratio of 6.7:1. |
| Auxiliary objective 0.5x, WD = 177mm. | |
| Auxiliary objective 0.7x, WD = 120mm. | |
| Auxiliary objective 1.5x, WD = 47mm. | |
| Auxiliary objective 2.0x, WD = 26mm. | |
| Working Distance | 100mm. Can be adjusted if auxiliary lens is used. |
| Focusing | Coarse focusing. |
| Stand | Gem stand with carrying handle tilts and swivels. Switch from brightfield to darkfield with a lever. Hardcoat anodized stage surface measures 7.5″ x 7.5″ with mounting hole for gem clamp on both sides. |
| C-Mount Adapters | Focusing C-Mount Adapters 0.35x and 0.5x. |
| Illumination | LED Flexible arm with rheostat control for oblique illumination. 6v 30w halogen transmitted light brightfield / darkfield. 120~240V Voltage sensing. |
| Dimensions | 10.” W x 11″ D x 18″ H |
| FZ6 Stereo Zoom Microscope Magnification | |||||||
| WF10x Eyepieces | WF15x Eyepieces | WF20x Eyepieces | |||||
| Auxiliary Lens | Working Distance | Total Magnification | Field Size (mm) | Total Magnification | Field Size (mm) | Total Magnification | Field Size (mm) |
| 1x (None) | 100mm | 6.7x – 45x | 32.8 – 4.9 | 10.1x – 67.5x | 23.9 – 3.6 | 13.4x – 90x | 17.9 – 2.7 |
| 0.5x | 177mm | 3.4x – 22.5x | 65.7 – 9.8 | 5x – 33.8x | 47.8 – 7.1 | 6.7x – 45x | 35.8 – 5.3 |
| 0.7x | 120mm | 4.7x – 31.5x | 46.9 – 6.98 | 7x – 47.3x | 34.1 – 5.1 | 9.38x – 63x | 25.6 – 3.8 |
| 1.5x | 47mm | 10.1x – 67.5x | 21.9 – 3.3 | 15.1x – 101.3x | 15.9 – 2.4 | 20.1x – 135x | 11.9 – 1.8 |
| 2.0x | 26mm | 13.4x – 90x | 16.4 – 2.4 | 20.1x – 135x | 11.9 – 1.8 | 26.8x – 180x | 9 – 1.3 |