E-62-475 12.5mm Dia x -20mm FL Negative Doublet Lens MgF2 Coated
E-62475 12.5mm Dia x -20mm FL Negative Doublet Lens MgF2 Coated
Product Family Description
- Magnesium Fluoride (MgF2) Coating
- Used to Extend Focal Length
TECHSPEC® MgF2 Coated Negative Achromatic Lenses consist of two optical elements cemented together. Negative doublet lenses are corrected for color and on-axis aberrations. TECHSPEC MgF2 Coated Negative Achromatic Lenses are used predominantly as Barlow lenses to extend focal lengths. These lenses are often combined with positive achromatic mirror systems and imaging lenses.