Key Highlights
- Magnification: 20× — ideal mid-range objective for biological and metallurgical use
- Semi-Plan design: delivers 25% flatter and sharper field than standard achromatic lenses
- DIN standard (45 mm parfocal length) — compatible with most laboratory microscopes
- High-quality optical glass with anti-fungal, anti-reflection coatings
- Color-corrected achromatic optics for clear imaging and true color rendition
- Designed for use with 160 mm tube length microscopes (finite optical system)
20× DIN Semi-Plan Achromatic Objective Lens for Compound Microscopes
The 20× DIN Semi-Plan Objective is a precision-engineered optical component that provides sharp, high-contrast images with improved field flatness. Designed to deliver superior optical correction across the central and peripheral field of view, it is suitable for use in clinical, educational, research, and industrial microscopes.
Technical Specifications
| Magnification | 20× |
| Optical Type | Semi-Plan Achromatic |
| Numerical Aperture (NA) | 0.40 |
| Working Distance (WD) | ~1.2 mm |
| Optical Tube Length | 160 mm (finite system) |
| Mount Thread | RMS standard (20.32 mm / 0.8" diameter, 36 TPI) |
| Parfocal Distance | 45 mm (DIN standard) |
| Coatings | Anti-fungal, anti-reflective multi-coating |
Features & Benefits
- Provides excellent contrast and brightness even under high magnification
- Enhanced flatness across the image field for precise documentation
- Improved optical correction of chromatic and spherical aberrations
- Ideal for biological, medical, metallurgical, and educational microscopes
- Durable metal barrel construction with precision-ground glass elements
- Compatible with all DIN 45 mm RMS-thread compound microscopes
Compatibility
This objective fits all microscopes that accept RMS-thread (20.32 mm) objectives with 160 mm finite optical tubes and 45 mm parfocal distance. Compatible with most brands of laboratory microscopes including research, student, and professional series.
Quality Assurance: Each objective is optically tested for resolution, centering, and field flatness before dispatch. Manufactured to meet DIN standards for parfocality and interchangeability.
Ideal upgrade for laboratory, clinical, or educational microscopes requiring sharp, flat-field imaging.
