Question about Nikon Action Binocular

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My Nikon Action 8 x 40CF binoculars, 6 years old, are not giving me such sharp images. I have never before used the diopter ring (at base or right eyepiece) to try and focus because the central focus ring seemed to do the job and the diopter ring has never seemed to do anything, even when the bins were new. It rrotates a short distance between -, 0 and + but when I turn it there's no visible difference between these settings. Is it not functioning? Am I using it correctly (it seems I am from consulting the rather inadequate Nikon manual).

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Possible that the set screws are loose and not turning the eyepiece inside..other than that try cleang the lenses...larry@reichinstruments

Posted on Jun 27, 2011

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Thomas E. Kuenzli Eagle Optics (800) 289-1132

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