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Message: <blockquote data-quote="kabsetz" data-source="post: 3576637" data-attributes="member: 10167">This kind of focus creep happens with the Canon binoculars I have or have had. The focus action is smooth with rather low friction, and the weight of the objective lens assembly, which moves in its entirety and outwards towards close focus, is enough to change the focus when the binocular is hanging around my neck. In my previous 15x50 IS, I placed a rubber O-ring between the focus knob and the binocular body to increase friction and effectively prevent this. With my current 10 x 42 L IS, I have not bothered to do anything with this, and just re-focus when necessary.In the Zeiss cutaway, it looks like there is only a single moving lens, but this seems to be enough to cause creep. In any case, I would consider this not a flaw but a design choice of sorts. People want smooth and light focusing action, and it can have its downsides.Kimmo</blockquote>