The Nikon Fieldscope Prostaff 5 Eyepiece SEP-20-60 is a versatile optical accessory for spotting scopes, offering a magnification range of 20x to 60x to meet various observation needs. With the model number BDB90182, this eyepiece features a high-quality lens system that ensures sharp, clear images with minimal distortion, making it ideal for birdwatching, wildlife observation, and other outdoor activities. It is made from durable materials to withstand regular use in various environments and provide reliable performance over time. The eyepiece is compatible with selected Nikon Fieldscope models, allowing for easy attachment and seamless integration. Its ergonomic design enables comfortable handling during extended observation sessions, while the precise construction supports consistent optical clarity throughout the entire magnification range. Weighing approximately 200 g, it is lightweight and portable, enhancing comfort for field use. This product focuses on providing practical benefits such as improved detail resolution and user-friendly operation, meeting the expectations of enthusiasts seeking reliable optical equipment. Please note that specifications should be verified with the manufacturer for accuracy, as data sources may vary.