Optical Glass Calibration Slide for Microscopy and Imaging Key features Material: Optical glass for flatness and optical clarity Slide size: 25mm x 75mm x 1.1mm, fits standard microscope stages Scale division: 0.01mm crossline scale for fine measurement Measuring range: X and Y axes 1mm per 100 divisions Four calibration dots diameters: 1.5mm, 0.6mm, 0.15mm, 0.07mm Package contents: 1 PC Why this slide is useful Provides a precise, easy reference for calibrating eyepiece reticles, camera sensors, and image analysis software. 0.01mm divisions allow accurate measurements of small features and consistent dimensional comparisons. Optical glass construction delivers stable performance and long service life under normal laboratory use. Compact slide size ensures compatibility with most standard microscope stages and imaging setups. Typical applications Calibrating microscope magnification and verifying pixel to physical unit conversions for photomicrography. Measuring fine features in material science, electronics inspection, and precision component analysis. Routine lab work where repeatable dimensional references are needed for documentation and quality control. Additional information Conversion reference: 1cm = 10mm = 0.39inch Due to manual measurement, allow a tolerance of 0 to 3mm Actual item color may differ slightly from images due to monitor variations This calibration slide is a practical tool for laboratories, schools, industrial inspection, and hobbyist microscopy where accurate scaling and repeatable measurements are required.