Enhance your biological microscopy experience with this high-quality Achromatic Objective Lens set, crafted from durable all-steel material to ensure long-lasting wear resistance and dependable performance. Designed for compatibility with a wide range of biological microscopes using the Standard RMS interface (20.2mm), this lens offers clear, adjustable magnification to observe the intricate texture and structure of tiny specimens with precision. Key Features: · Premium Steel Construction: Made from high-quality all-steel for exceptional durability and resistance to wear, supporting reliable long-term use. · Adjustable Magnification & Clear Imaging: Provides sharp, vivid images with adjustable magnification levels that facilitate detailed observation of microscopic textures and structures. · Six Magnification Options: Includes six achromatic objective lenses—4X, 10X, 20X, 40X, 60X, and 100X—to meet various observation needs, from insects and banknotes to cells and bacteria. · Convenient Storage: Each objective lens comes with its own individual plastic storage box, ensuring safe, organized, and easy handling. · Standard RMS Interface: Compatible with most biological microscopes using the professional 20.2mm Standard RMS threading, making it versatile and easy to integrate into existing microscope setups. Specifications: · Material: Steel · Interface Standard: RMS 20.2mm · Types Included: 4X, 10X, 20X, 40X, 60X, 100X Achromatic Objective Lenses (Optional) Detailed Lens Characteristics: - 4X: Numerical aperture 0.1, working distance 18mm, coverslip thickness 0.17mm, ideal for observing insects, banknotes, and electronic motherboards with imaging clarity superior to a magnifying glass. - 10X: Numerical aperture 0.25, working distance 7mm, coverslip thickness 0.17mm, perfect for repairing fine electronics and small antiques with enhanced clarity. - 20X: Numerical aperture 0.4, working distance 0.55mm, coverslip thickness 0.17mm, spring-loaded for improved focus, suitable for observing aphids, aquatic specimens, and silkworms. - 40X: Numerical aperture 0.65, working distance 0.53mm, coverslip thickness 0.17mm, spring-loaded, ideal for viewing cells, sperm, eggs, and artificial insemination samples. - 60X: Numerical aperture 0.65, working distance 0.13mm, coverslip thickness 0.17mm, spring-loaded, optimized for examining cells, sperm, crude bacteria, and related specimens. - 100X: Numerical aperture 1.25, working distance 0.13mm, coverslip thickness 0.17mm, oil immersion with spring-loaded design, essential for medical tests, blood analysis, bacterial studies, scientific research, and student specimen viewing. Package Includes: · 1 x Achromatic Objective Lens (select magnification) with protective plastic storage box This achromatic objective lens set is an essential addition for students, researchers, and professionals seeking precise, clear, and versatile microscopy capabilities. Its robust steel construction combined with multiple magnification choices and standardized fitting ensures seamless integration, durability, and exceptional viewing quality for various biological and scientific applications.