Azure Spy High-Precision Cemented Achromatic Doublet Lens, Ø83 mm, Focal Length 900 mm – Telescope Grade, Green Film Coated

The Azure Spy High-Precision Achromatic Doublet Lens is built for professional-grade telescope systems and advanced optical applications, combining a large 83 mm aperture with an extended 900 mm focal length to deliver unmatched clarity, resolution, and color accuracy. Designed with a precision cemented doublet structure, this lens offers powerful light-gathering capability, exceptional sharpness, and superior chromatic aberration correction across the visible spectrum.

Crafted from premium crown and flint optical glass, the doublet design effectively reduces chromatic and spherical aberrations, ensuring distortion-free, high-contrast imaging even at high magnifications. Its long focal length makes it ideal for planetary observation, deep-sky astronomy, astrophotography, and research-grade instruments that demand maximum precision.

The lens is finished with a green film anti-reflective coating, which enhances light transmission, reduces reflections, and provides bright, high-contrast images—even under low-light astronomical conditions.

Key Specifications:

• Brand: Azure Spy

• Type: Cemented Achromatic Doublet Lens

• Clear Aperture (Ø): 83 mm

• Focal Length: 900 mm

• Coating: Green Film Anti-Reflective Coating

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

• Optical Performance: Long focal length, telescope-grade clarity, high-contrast and aberration-free imaging

• Applications: Astronomy telescopes, planetary and deep-sky observation, astrophotography, laser systems, scientific research instruments

The Azure Spy Ø83 mm, 900 mm Achromatic Doublet Lens is the perfect solution for astronomers, astrophotographers, and researchers who require large-aperture, long focal length precision optics for high-resolution, telescope-grade performance.