Fully multicoated and fully coated are terms used to describe the level of coating on optical lenses, especially in riflescopes.
Fully coated lenses have a single layer of anti-reflective coating on each of the lens surfaces, which reduces glare and increases light transmission. However, fully coated lenses are not as effective as other coatings and can sometimes produce poor image quality.
Fully multicoated lenses, on the other hand, have multiple layers of anti-reflective coating on all air-to-glass surfaces. This means that each lens element is coated for optimal light transmission and image quality. They are the most preferred choice among optics enthusiasts and professionals due to their superior light transmission, resistance to glare, and excellent resolution.
In summary, fully multicoated lenses are higher quality than fully coated lenses because of their multiple layers of anti-reflective coating and better image quality.
