| Model |
SGO-3231 Metallurgical Microscope |
| Optical System |
Infinity optical system |
| Observation Tube |
Trinocular, 30° inclined, adjustable diopter |
| Eyepiece |
WF10X wide-field, field of view Φ18 mm |
| Objectives |
Long-working-distance plan achromatic, no-cover-glass: PL 5X/0.12, PL L10X/0.25, PL L20X/0.40, PL L50X/0.70 |
| Objective Selection |
40X / 50X / 60X, one of three configurations |
| Nosepiece |
Four-hole, inward ball positioning |
| Mechanical Stage |
Double-layer mechanical stage |
| Stage Size |
210 × 140 mm |
| Stage Travel |
63 × 50 mm |
| Reflected Illumination |
6V 20W halogen lamp, adjustable brightness |
| Reflected-Light Components |
Field diaphragm, aperture diaphragm, polarizer, yellow/blue/green filters, frosted glass |
| Polarized Observation |
Polarizer and analyzer |
| Focusing Mechanism |
Coaxial coarse and fine focusing |
| Fine Focus Graduation |
2 μm |
| Focusing Features |
Locking and limit mechanisms; adjustable coarse-focus tension |
| Transmitted Illumination |
6V 20W halogen lamp, adjustable brightness |
| Condenser |
Abbe condenser, NA 1.25, vertically adjustable |
| Transmitted-Light Filters |
Blue filter and frosted glass |
| Collector |
Suitable for halogen illumination, built-in field diaphragm |
| Imaging Expansion |
CCD, digital camera, DSLR camera adapters |