Enhance your microscopy experience with this high-performance 60X Achromatic Objective Lens, designed to deliver clearer and brighter images with exceptional precision. Crafted from premium brass material with chrome plating, this lens offers superior durability, corrosion resistance, and fall protection, making it a reliable accessory for professional biological microscopes. Key Features: · Superior Image Clarity: Coated with high light transmittance and a high refractive index, this lens produces bright, sharp, and clear images for detailed specimen observation. · Automatic Rebound Spring Protection: Equipped with a spring mechanism that automatically rebounds upon contact with the cover glass, effectively protecting both the lens and specimen from damage during use. · Premium Brass Construction: Made from high-quality brass with fine workmanship and chrome plating, ensuring corrosion resistance, durability, and a long service life. · Universal Compatibility: Features an international standard RMS interface size (approx. 20.2mm), compatible with most professional biological microscopes on the market for versatile application. · Precise Optical Specifications: Offers 60X magnification with a numerical aperture of approximately 0.85, suitable for detailed microscopic analysis. · Optimized Working Parameters: Designed with a working distance of approx. 0.53mm and a parfocal distance of approx. 45mm, ensuring ease of focusing and seamless switching between objectives. · Standard Mechanical Tube Length: Compatible with microscopes featuring a mechanical tube length of approx. 160mm and a common rail distance of approx. 195mm for reliable fitting and performance. Specifications: · Item Type: Achromatic Objective · Model: 60/0.85 · Material: Brass (Chrome Plated) · Interface Size: Approx. 20.2mm / 0.80in (International Standard RMS) · Magnification: 60X · Numerical Aperture: Approx. 0.85 · Cover Glass Thickness: Approx. 0.17mm / 0.007in · Mechanical Tube Length: Approx. 160mm / 6.30in · Working Distance: Approx. 0.53mm / 0.02in · Common Rail Distance: Approx. 195mm / 7.68in · Parfocal Distance: Approx. 45mm / 1.77in · Spring: Yes (Automatic Rebound) Package Includes: · 1 x 60X Achromatic Objective Lens This achromatic objective lens is an essential accessory for enhancing the precision and clarity of your microscopy work. Its robust brass construction combined with advanced optical coatings and protective features ensures long-lasting performance and reliable results in various biological and scientific applications.