[Jewelry making - Article 00462] - [Orchid] Optics and backache

[jyang949]

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    My dentist has tried several magnifiers. The frames varied but most
    had the same basic design: A headstrap and two magnifying lenses. 

    The magnifier he likes best looks like a pair of mini-binoculars
    strapped to his head! The short  depth of field that you get from
    zoom lenses is usually considered a drawback, but he said it's a
    plus. "The best thing about these is that my back doesn't hurt
    anymore. Whatever I'm looking at has to be a fixed distance away for
    me to see it clearly. These are adjusted so I can't hunch over while
    examining teeth, forcing me to use good posture." 

    I, too, tend to hunch over my work, which makes my back hurt and
    nose sting (from the occasional whiff of melting flux). Using
    binocular-type magnifiers could help, but I'm wondering if the short
    depth of field would be annoying. Have you tried these? 

Janet


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