Azure Spy High-Precision Cemented Achromatic Doublet Lens, Ø93 mm, Focal Length 900 mm – Telescope Grade, Green Film Coated

The Azure Spy High-Precision Achromatic Doublet Lens is designed for advanced telescope systems and scientific-grade optical instruments, delivering outstanding clarity, resolution, and precise color correction. With a large 93 mm clear aperture and a long 900 mm focal length, this cemented doublet lens provides exceptional light-gathering power, sharp detail, and superior chromatic aberration control across the visible spectrum.

Manufactured from premium crown and flint optical glass, the doublet design minimizes spherical and chromatic aberrations, ensuring high-contrast, distortion-free imaging even at extreme magnifications. The combination of a large aperture and extended focal length makes it especially well-suited for deep-sky observation, planetary imaging, astrophotography, and research-grade optical systems.

The optical surfaces feature an advanced green film anti-reflective coating, which improves light transmission, reduces reflections, and produces bright, high-contrast images under both low-light astronomical and high-magnification conditions.

Key Specifications:

• Brand: Azure Spy

• Type: Cemented Achromatic Doublet Lens

• Clear Aperture (Ø): 93 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, superior aberration correction

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

The Azure Spy Ø93 mm, 900 mm Achromatic Doublet Lens is the perfect choice for astronomers, astrophotographers, and optical researchers seeking large-aperture, long focal length precision optics for professional telescope and research applications.