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  1. B

    Monarch M7 8x42 problem

    I doubt that, but the optical construction of the binocular may be a factor. Also different exit pupils and colour balance in different binoculars. And different chromatic aberration in different binoculars may enhance the effect. Green and red suggests chromatic aberration is involved...
  2. B

    Monarch M7 8x42 problem

    The eyes have chromatic aberration and sometimes green and red can appear in 3D on a flat screen. This may be the cause of the problem. But it could be something else. Regards, B.
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