transparency PET microscope sheets designed for clear imaging, precise calibration, and durable use Key benefits Clear imaging: Transparent PET minimizes light scattering for accurate observation and imaging. Precision markings: Dot diameter range 0.05 to 2.0 mm and line thickness range 0.03 to 2.2 mm provide a wide spectrum of feature sizes for calibration, measurement, and alignment tasks. Low profile: Sheet thickness 0.1 mm reduces optical distortion and fits under typical covers or in slide holders. Durable construction: Made from longlasting materials to withstand repeated handling and maintain consistent performance. Convenient size and quantity: 90 x 55 mm sheets supplied in sets of 3 for multiple uses or backup samples. Specifications Material: Transparent PET Thickness: 0.1 mm Size: 90 x 55 mm, 3 units Dot diameter: 0.05 to 2.0 mm Line thickness: 0.03 to 2.2 mm How this product solves common problems Eliminates uncertainty when calibrating microscopes and imaging systems by providing known dot and line dimensions. Reduces setup time for slide preparation and measurement tasks with preformed, consistent markings. Maintains image clarity during inspections thanks to the transparency and minimal thickness of the PET material. Compatibility and use Works with standard microscope slide holders, stage adapters, and common slide preparation kits. Can be used alongside objectives and imaging cameras for calibration and test imaging. Typical applications Educational labs: Demonstrate resolution limits, magnification calibration, and measurement techniques for students. Imaging calibration: Verify pixeltodistance relationships for microscope cameras and digital imaging workflows. Quality control and inspection: Check printing or etching processes by comparing produced dot and line features to the sheet standards. What you get Three transparency PET sheets, each 90 x 55 mm, with a range of dot diameters and line thicknesses to support calibration, measurement, and routine microscopy tasks.