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To Coat or Not to Coat

Binocular lens coatings are special coatings applied to the lenses of binoculars to improve their optical performance. These coatings work by reducing glare, increasing light transmission, and enhancing contrast. There are several different types of coatings, each with its

own unique benefits and properties.

  1. Coated: Coated lenses have a single layer of coating on at least one of the lens surfaces. This type of coating improves light transmission and reduces glare.

  2. Fully coated: Fully coated lenses have a single layer of coating on all air-to-glass surfaces. This type of coating improves light transmission and reduces glare across the entire optical system.

  3. Multi-coated: Multi-coated lenses have multiple layers of coatings on at least one lens surface. This type of coating further improves light transmission and reduces glare.

  4. Fully multi-coated: Fully multi-coated lenses have multiple layers of coatings on all air-to-glass surfaces. This type of coating provides the highest level of light transmission, contrast, and color fidelity.

The coatings used in binocular lenses are typically made of materials such as magnesium fluoride or other specialized compounds. They are applied using various processes, such as vacuum deposition or chemical vapor deposition, to create a thin, uniform layer on the surface of the lens.

Binocular lens coatings play a critical role in improving the quality of the images you see through your binoculars. They can reduce glare, increase contrast, and provide clear, sharp, and bright images. The type and quality of coating used in binocular lenses can affect the overall performance and price of the binoculars.



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