- Achromatic Lens: This high-quality achromatic lens features a blue diameter of 70mm, designed specifically for separation applications. - Ideal for DIY Astronomy: Perfect for enhancing your astronomical telescope, this lens is a must-have accessory for DIY enthusiasts looking to elevate their stargazing experience. - Enhanced Observation: With a focal length of 400mm, this lens enables you to clearly observe celestial bodies, making it easier to view distant stars, planets, and other astronomical phenomena. - Unique Aesthetic: The striking blue color not only adds a distinctive look to your telescope but also makes it stand out in any collection. - Superior Light Gathering: The 70mm diameter provides excellent light-gathering capacity, significantly improving your viewing quality and allowing for brighter, clearer images. Use Scenarios: - Stargazing: Perfect for backyard astronomy sessions, this lens enhances your ability to view planets and constellations with remarkable clarity. - Educational Purposes: Ideal for classrooms or workshops, this lens can help students and enthusiasts learn about celestial observation in a hands-on manner. - Astrophotography: Use this lens to capture stunning astrophotographs, providing the detail and clarity needed for beautiful celestial images. This achromatic lens is compatible with various telescopes, ensuring versatility and ease of use. Trust in its performance to deliver exceptional views of the night sky.