Enhance your microscopic observations with this premium 4X Achromatic Objective Lens, designed for biological microscopes. Crafted with a precision-machined aluminum alloy shell, this objective lens delivers exceptional stability and long-lasting durability for consistent performance. Engineered to eliminate unwanted reflections and significantly increase contrast, it provides clear, high-quality images without additional chromatic aberration, ensuring accurate and detailed observation. Key Features: · Precision Aluminum Alloy Shell: Manufactured with high-quality aluminum alloy, the lens shell is stable, durable, and resistant to wear, guaranteeing reliable long-term use. · 4X Magnification: Offers a balanced magnification level ideal for detailed biological specimen viewing, enhancing clarity and precision. · Achromatic Design: Reduces chromatic aberration and eliminates unwanted reflections to improve image contrast and sharpness for superior observation results. · Standard RMS Thread Mounting: Compatible with microscopes utilizing a 20mm standard RMS thread, ensuring easy installation and secure fitting. · Compact and User-Friendly Size: With an objective lens length of 30.5mm and a tube length of 160mm (6.3 inches), it is convenient to use and fits a wide range of microscope models. · Optimal Optical Performance: Designed with a conjugate distance of 185mm and suitable for use with cover-glass thickness of 0.17mm, delivering precise focus and image quality. Specifications: · Item Type: Achromatic Objectives Lens · Material: Aluminum Alloy + Optical Lens · Magnification: 4X · Tube Length: 160mm / 6.3 inches · Conjugate Distance: 185mm · Cover-glass Thickness: 0.17mm · Objective Lens Length: 30.5mm · Mounting Size: 20mm (Standard RMS Thread) · Item Size: 5 x 5 x 5 cm (2.0 x 2.0 x 2.0 inches) · Package Weight: Approx. 41g Package Includes: · 1 x 4X Achromatic Objective Lens This 4X Achromatic Objective Lens is the perfect upgrade for biological microscopes, providing enhanced image clarity and stability. Its durable aluminum alloy construction and advanced optical design make it an essential accessory for researchers, students, and microscopy enthusiasts seeking accurate and vivid specimen observation.