The 4.5 mm 82° LER optical lenses provide a truly immersive visual experience. Thanks to the large distance between the eye and the lens, they facilitate the use of the "remote viewing" technique for observing faint details within a wide optical field. These lenses feature foldable rubber caps, making them easy to use and transport. The eye comfort is essential when observing at the optical limits of a telescope.

To minimize internal reflections, all internal surfaces of the lens tube are blackened, and the edges of the lenses are also blackened to reduce light dispersion. These lenses are the ideal choice for eyeglass users, offering excellent performance and durability. The proprietary EMD coating creates high-contrast images and prevents reflections and "ghosting." Argon venting effectively prevents internal fogging, avoiding the accumulation of dust, mold, or cleaning residues between the lenses. The lenses are sealed, ensuring long-term use.

• Large distance between the eye and the lens, wide field of view, and clear image
• Excellent viewing position for eyeglass users
• Outstanding field sharpness even with fast optics
• 82° optical field
• Argon venting to prevent internal fogging and sealing that facilitates cleaning
• Proprietary EMD coating for maximum contrast
• Blackened lens edges to prevent reflections
• All lenses in this series are phase coated
• Stainless steel tube with conical-shaped protective bumper
• Includes dust covers and protective case

Technical Specifications:

• Type: Phase coated
• Optical material: Optical glass
• Optical coating: Multi-layer EMD (Enhanced Multi-layer Deposition)
• Optical design: 7 elements in 4 groups
• Optical field: 82°
• Focusing distance: 4.5 mm
• Eye relief: 15.9 mm
• Field stop diameter: 28 mm
• Tube diameter: 1.25"
• Lens tube diameter: 31.7 mm