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The National 705-420 0.5x Auxiliary Objective Lens reduces magnification by 50%. This allows an increased working distance from 3.1" / 79mm to 5.4" / 137mm, as well as doubling the field diameter.
Product highlights and buying context
The National 705-420 0.5x Auxiliary Objective Lens reduces magnification by 50%. This allows an increased working distance from 3.1" / 79mm to 5.4" / 137mm, as well as doubling the field diameter.
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