This high-quality double concave lens is designed for a variety of optical applications. With a 50 mm diameter and ground edges, it’s perfect for hands-on experiments and technical instruction. Concave lenses make objects appear smaller and help expand your field of view—an essential feature for educational demonstrations, telescopes, and binoculars. Whether you're a student, teacher, or hobbyist, this lens delivers excellent clarity and performance.

Features:

• 🔍 50 mm Diameter – Large enough for clear viewing and easy handling

• 🔬 Double Concave Design – Curved inward on both sides to reduce image size and expand view

• 📚 Educational Use – Great for science labs, physics classes, and optical demonstrations

• 🔭 Versatile Applications – Suitable for telescopes, binoculars, and optical experiments

• ✅ Premium Quality – Ground edges for safety and precision