Azure Spy High-Precision Cemented Achromatic Doublet Lens, Ø72 mm, Focal Length 395 mm – Telescope Grade, Green Film Coated

The Azure Spy High-Precision Achromatic Doublet Lens is engineered for professional telescope objectives and scientific-grade optical systems, offering a precise balance between aperture size and focal length. With a 72 mm clear aperture and a 395 mm focal length, this cemented doublet delivers excellent light-gathering ability, sharp resolution, and superior color correction across the visible spectrum.

Constructed from high-quality crown and flint optical glass, the achromatic doublet configuration minimizes chromatic and spherical aberrations, producing distortion-free, high-contrast images. Its focal length-to-aperture ratio makes it highly suitable for astronomical telescopes, astrophotography, and advanced research instruments, where precision and clarity are essential.

The lens features a green film anti-reflective coating on its optical surfaces, which enhances light transmission, reduces reflections, and ensures bright, high-contrast imaging even under challenging low-light or high-magnification conditions.

Key Specifications:

• Brand: Azure Spy

• Type: Cemented Achromatic Doublet Lens

• Clear Aperture (Ø): 72 mm

• Focal Length: 395 mm

• Coating: Green Film Anti-Reflective Coating

• Glass Type: Crown & Flint Optical Glass (Precision Bonded)

• Optical Performance: Excellent chromatic aberration correction, telescope-grade clarity, distortion-free imaging

• Applications: Astronomy telescopes, astrophotography, precision imaging, laser optics, scientific research instruments

The Azure Spy Ø72 mm, 395 mm Achromatic Doublet Lens is the perfect solution for astronomy enthusiasts, optical designers, and research professionals who require large-aperture, long focal length optics for high-precision telescope and scientific applications.