Features: Elevates your microscopy experience with our auxiliary objective lens, offering 0.5 and 0.7 magnification option to uncover the intricate details of the world. Engineered for precisions, this lens maintains imaging quality with advanced coating technology that enhances light transmission. For researcher in biology, medicine, and materials science, this accessory lens is a tool for in depth microscopic analysis and data collection. A perfect educational aid for teachers and students in academic setting, it provide a demonstration of the microscopic universe, enriching learning experience. Crafted from aluminum alloy, this lightweight lens attachment is for ease of use, ensuring integration with various electronic microscopes for professional across industry. Specifications: Material: Aluminum Alloy Size:(Optional) 0.7: About. 5x5x2.25cm/1.97x1.97x0.89in(Working Distance 12-14cm) 0.5: About. 5x5x3.2cm/1.97x1.97x1.26in(Working Distance 16.5-21cm) Color: Black/Blue/Redness Package Includes: 1pc Auxiliary Barlow Objective Lens note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.