Posted by Peter Wagner on June 07, 2018 at 03:07:22 user PeterW.
In Reply to: Re: 'Sea Bear's' binoculars posted by Mike Field on June 06, 2018 at 17:20:15:
I suspect the knob is just a locking screw to set the interpupillary distance. Each eyepiece appears to have its own knurled focussing ring.
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