performance 20x biological microscope objective designed for reliable, longterm use in laboratory and educational settings Key benefits Clear, detailed imaging: 20x magnification combined with a numerical aperture of 0.40 delivers improved resolution and contrast for cellular and tissue observation. Stable, durable construction: made from quality materials for consistent optical alignment and long service life. Precision focusing and working range: designed focal distance and working distance give predictable imaging geometry for repeatable results. Main features and specifications Length L = 195 Magnification = 20x Numerical aperture = 0.40 Focal distance = 8.56 Working distance = 1.16 Objective size = 20.2 mm Compatibility and use Intended for biological microscopes that accept a 20.2 mm objective lens size. Integrates with standard laboratory and classroom microscope setups where a 20x objective is required. Performance and materials quality optical elements and mechanical housing provide stable performance under routine use. Precision lens spacing and quality glass maintain image fidelity and minimize aberrations within the specification limits. Robust construction supports frequent handling in teaching, research, or production environments. Practical applications Educational laboratories: ideal for student microscopy exercises in cell biology, botany, and microbiology where durable, easytouse optics are needed. Research microscopy: suitable for routine observations and documentation of slides in university or industrial research settings. Quality control and inspection: useful for microscopy tasks in small manufacturing or material inspection where 20x magnification and reliable optics are required. What this lens solves Provides a consistent 20x imaging option with predictable working and focal distances for standardized procedures. Reduces downtime by offering durable construction and stable optical performance during repeated use. Simplifies equipment choice by matching common laboratory needs for midrange magnification without overcomplicating setup. Ordering note Confirm that your microscope accepts a 20.2 mm objective lens before to ensure compatibility.