FZ8-GM Gemological Microscope
The Fein Optic FZ8 gemological microscope has a built-in objective zoom range of 0.65x – 5.2x. A variety of eyepieces and auxiliary lenses are available to take magnification as low as 3.2x and as high as 208x. 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. Detent click stops can be enabled or disabled for continuous zoom. If enabled, click stops are at 1x, 2x, 3x, 4x, and 5x. |
| 45° Inclined trinocular viewing head rotates 360°. Interpupillary distance adjustment from 54mm – 76mm. Beam splitter splits light 50:50 between eyepieces and camera port. Detent click stops can be enabled or disabled for continuous zoom. If enabled, click stops are at 1x, 2x, 3x, 4x, and 5x. | |
| Eyepieces | WF10x-F widefield, high eyepoint, focusing eyepieces, FN2 . |
| WF15x-F widefield, high eyepoint, focusing eyepieces, FN16. | |
| WF20x-F widefield, high eyepoint, focusing eyepieces, FN12. | |
| Objective Lenses | Standard built-in objective: 0.65x – 5.2x zoom. |
| 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 | 118mm. |
| Stand | Gem stand with coarse focus and 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. Includes one gem clamp. |
| C-Mount Adapters | Focusing C-Mount Adapters 0.35x, 0.5x, 1x. |
| 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 |
| FZ8 Stereo Zoom Microscope Magnification | |||||||
| Auxiliary Lens |
Working Distance |
10x Eyepieces |
15x Eyepieces |
20x Eyepieces |
|||
| Magnification | Field Size |
Magnification | Field Size |
Magnification | Field Size | ||
| 1x (None) |
118mm |
6.5x – 52x |
36.2mm – 4.7mm |
9.75x – 78x |
24.6mm – 3.1mm |
13x – 104x |
15.4mm – 1.9mm |
| 0.5x |
177mm |
3.3x – 26x |
73.8mm – 9.2mm |
4.9x – 39x |
49.2mm – 6.2mm |
6.5x – 52x |
30.8mm – 3.8mm |
| 0.7x |
120mm |
4.6x – 36.4x |
52.7mm – 6.6mm |
6.8x – 54.6x |
35.2mm – 4.4mm |
9.1x – 72.8x |
22mm – 2.7mm |
| 1.5x | 47mm | 9.75x – 78x |
24.6mm – 3.1mm |
14.6x – 117x |
16.4mm – 2.1mm |
19.5x – 156x |
10.3mm – 1.3mm |
| 2.0x | 26mm | 13x – 104x |
18.5mm – 2.3mm |
19.5x – 156x |
12.3mm – 1.5mm |
26x – 208x |
7.7mm – 1mm |