Authorized Dealer
The National 775-420 0.75x Auxiliary Objective Lens reduces magnification by 75%. This allows an increased working distance from 3.1" / 79mm to 3.5" / 90mm, as well as increasing the field diameter by 33%.
Product highlights and buying context
The National 775-420 0.75x Auxiliary Objective Lens reduces magnification by 75%. This allows an increased working distance from 3.1" / 79mm to 3.5" / 90mm, as well as increasing the field diameter by 33%.
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