This is a used Leitz 50x water immersion fluorescence microscope objective, model 519802. Water immersion objectives are used in advanced microscopy to achieve high resolution imaging of specimens in aqueous media, making them suitable for biological research, cell imaging, and fluorescence applications. The 50x magnification provides a detailed view. This specific model is designed for fluorescence microscopy techniques. As a used component, it is intended for researchers, laboratory technicians, or institutions looking to expand or maintain their microscopy capabilities at a potential cost advantage. The listing notes free shipping for this item. Since condition details for used optical components are critical, please review all provided images and the seller's notes carefully. Check the listing for full details on the specific optical and physical condition of this objective. Leitz Microscope Objective 50x W Fluoreszenz Water Immersion 519802. Condition: Used. Listed at 995.00 USD. Part No. 519802. Objective has been tested with water and produces a good image.