Freedom Scientific Ruby - Magnification Adjustment

7
Magnifying with RUBY
How far you hold RUBY from an object determines the level of magnification.
Placing RUBY with Handle Closed on a Document
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The starting magnification is 5X when you place RUBY directly on a
document with the handle folded closed.
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Press the yellow button once to increase to 7.5X magnification.
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Press again to increase to 10X magnification.
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Press a third time to return to 5X magnification.