Enhance your microscopy experience with this high-performance 100X Achromatic Objective Lens, precisely crafted from durable brass material with chrome plating for superior corrosion resistance and long-lasting durability. Designed with a high refractive index and high light transmittance coating, this lens delivers brighter, clearer images essential for detailed biological observations. Featuring an automatic rebound spring protection device, it safeguards both the lens and specimen by retracting upon contact with the cover glass, preventing damage during use. Key Features: · Superior Image Clarity: High transmittance coating combined with a high refractive index ensures brighter and sharper images for accurate microscopic analysis. · Automatic Rebound Spring Protection: Innovative spring mechanism automatically retracts the lens on contact with the cover glass, protecting the lens and avoiding specimen damage. · Premium Brass Construction: Made from corrosion-resistant brass with precise chrome plating, offering excellent durability, fine workmanship, and resistance to accidental drops. · Standardized Interface Compatibility: Features an international standard RMS screw size (approx. 20.2mm / 0.80in), compatible with most professional biological microscopes on the market. · Precise Optical Specifications: 100X magnification with a numerical aperture of 1.25, parfocal distance of 45mm, and common rail distance of 195mm, suitable for accurate and consistent focusing. · Designed for Optimal Use: Compatible with cover glass thickness around 0.17mm and microscope mechanical tube length of approximately 160mm, ensuring wide microscope adaptability. · Cedar Oil Immersion: Intended for use with cedar oil as the impregnation medium, providing enhanced resolution and image quality for oil immersion microscopy. Specifications: · Item Type: Achromatic Objective · Model: 100/1.25 · Material: Brass with chrome plating · Interface Size: Approx. 20.2mm / 0.80in (International Standard RMS) · Magnification: 100X · Numerical Aperture: Approx. 1.25 · Cover Glass Thickness: Approx. 0.17mm / 0.007in · Mechanical Tube Length Compatibility: Approx. 160mm / 6.30in · Working Distance: Approx. 0.13mm / 0.005in · Common Rail Distance: Approx. 195mm / 7.68in · Parfocal Distance: Approx. 45mm / 1.77in · Impregnation Medium: Cedar Oil (OIL) · Spring: Yes (Automatic Rebound) Package Includes: · 1 x 100X Achromatic Objective Lens This brass-made achromatic objective lens combines precision engineering and robust materials to deliver enhanced imaging performance and protection during use. Ideal for advanced biological microscopy applications, it ensures reliable compatibility and outstanding optical clarity for professionals and enthusiasts alike.