
Driven by SOPTOP's philosophy of continuous exploration, the RX50M brings a series of pioneering design features in appearance and function — delivering an ideal detection solution for semiconductors, PCBs, displays and materials analysis.
Wide-field optics, flexible contrast methods and thoughtful controls for everyday precision.

A 26.5 mm super-wide field of view brings a whole new, expansive viewing experience.

The polarizer and analyzer eliminate stray light in semiconductor and PCB inspection for clear detail. Choose a fixed analyzer or a 360° rotatable analyzer to observe the sample at different polarizing angles.

Tiny surface asperities invisible in bright field are revealed by the U-DICR attachment, which creates a high-contrast background. Widely used to check conductive particles on LCDs and surface scratches on precision disks.

The lever on the front of the illuminator switches between bright field and dark field and works in tandem with a built-in ND50 neutral-density filter. Switching from DF to BF, the ND50 automatically reduces the light intensity — more scientific and more comfortable for the eyes.

Up to seven objectives can be mounted at once, giving a continuous, well-spaced range of magnifications from low to high.

A 4-inch double-layer mechanical stage with a lock that limits Y-axis movement — ideal for horizontal scanning so nothing is missed.

A long-life 12 V 100 W lamp house with a PHILIPS 7724 halogen bulb provides bright, uniform light.

Bright field, dark field (reflected light only), polarizing and DIC (reflected light only) — for semiconductors, PCBs, displays and metals.






| Item | RX50M |
|---|---|
| Optical system | Infinity color-corrected optical system |
| Viewing head | Erect image, 30° inclined Siedentopf trinocular head; IPD 50 – 76 mm; split R : T = 100:0 or 0:100 Inverted image, 30° inclined Siedentopf trinocular head; IPD 50 – 76 mm; split R : T = 100:0, 20:80 or 0:100 Tilting 5° – 35°, inverted image, infinity articulated trinocular tube; IPD 50 – 76 mm; three-step split binocular = 50:50, 100:0 or 0:100 |
| Eyepieces | High eye-point wide-field plan eyepiece PL10×/25 mm, diopter adjustable High eye-point wide-field plan eyepiece PL10×/25 mm, with reticle, diopter adjustable |
| Objectives | BD semi-apochromatic metallurgical objectives 5× / 10× / 20× / 50× / 100× Semi-apochromatic metallurgical objectives 5× / 10× / 20× / 50× / 100× Infinity SAPO objective with correction collar 50× Infinity long-WD bright-field / dark-field SAPO metallurgical objectives 50×, 100× |
| Nosepiece (with DIC slot) | BD quintuple or BD sextuple nosepiece Sextuple or septuple nosepiece |
| Frame | |
| Reflected / transmitted | Low-position coaxial coarse and fine focus; coarse travel 25 mm, fine precision 0.001 mm; coarse stop and tension adjustment. Built-in 100 – 240 V wide-voltage transformer with dual power output; digital intensity setting and reset; reflection / transmission switch; built-in transmitted filters LBD / ND6 / ND25. Independent brightness control for reflected / transmitted light with a single high-power 5 W LED for upper and lower illumination (standard cool white 4750 – 5500 K, optional warm white 2850 – 3250 K) |
| Reflected only | Coaxial coarse and fine focus; coarse travel 25 mm, fine precision 0.001 mm; coarse stop and tension adjustment. Built-in 100 – 240 V wide-voltage transformer; digital intensity setting and reset; single high-power 5 W LED light box (standard cool white 4750 – 5500 K, optional warm white 2850 – 3250 K) |
| Stage & illumination | |
| Stage | 4″ three-layer mechanical stage with glass plate, travel 102 (Y) × 105 (X) mm Right-hand 4/6″ mechanical stage, travel 102 × 153 mm, with Y-axis lock, light shield and glass / metal specimen plate |
| Condenser | Swing-out achromatic condenser (N.A. 0.9) |
| Reflected illuminator | BD reflected illuminator with iris field diaphragm and aperture diaphragm, centrable; filter slot and polarizer slot; bright / dark field switch |
| Lamp house | 12 V / 100 W halogen lamp house, pre-centred |
| Accessories | |
| Camera adapter | 0.35× / 0.5× / 0.65× / 1× focusing C-mount |
| Polarizing | Fixed polarizer, fixed analyzer, 360° rotatable analyzer |
| DIC | DIC attachment |
| Interference filters (reflected) | Blue ≤ 480 nm; green 520 – 570 nm; red 630 – 750 nm; color-balance filter (white light) |
| Micrometer | High-precision micrometer, scale value 0.01 mm |
Tell us your samples and contrast methods — we'll configure the right head, objectives and stage.
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