The defect of the binoculars appears only under certain lighting conditions, in sunny weather as a glare in the left image. The reason is contamination of the inner surface of the objective lens. I'm sure it's not dust, more like drops of paint or glue. I tried to apply for warranty service at the Nikon central service center at 105120, Hong Kong, 2nd Syromyatnichesky lane, 1, Delta Plaza Business Center, Nikon LLC, Service Center, they refused warranty repairs.
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