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When choosing binoculars, get a pair that have Fully Coated Optics. That means that there is an antireflective coating on every glass surface in the optical path. Some low cost department store binoculars state Coated Optics, that does not necessarily mean that every surface is coated. Since every uncoated glass surface in the light path reflects about 4% of the light, it make a significant difference in both brightness and clarity of the image. (Eight surfaces are common.)
Enjoy the viewing!
Tom
Enjoy the viewing!
Tom