Question about Zeiss 528013 / 528015 Diascope 85

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Zeiss diascope coarse adjustment

On my last outing to Yellowstone I noticed that the coarse adjustment knob on my scope was spinning freely. There is a super small hole in both the coarse and fine adjustment knobs. Did I lose a very tiny screw or how do I tighten things down so that the coarse adjustment works again?

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Sounds like you lost the locking Allen screw.
need that to sort your problem.

Posted on Jul 11, 2008

  • Graeme Ross
    Graeme Ross Jul 11, 2008

    I would suggest taking the scope to an optics repair shop. They should be able to supply and fit a screw to that while you wait. Unless... there is some internal damage to the drive. Then repairs may be a little more involved.

    regards
    robotek


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