18mm Dia x -46 FL MgF₂ Coated, Achromatic Lens

產品系列說明

• Correct for Color and On-Axis Aberrations
• MgF₂ Coated for Low Reflection
• Ideal for use as Barlow Lenses

Consisting of two optical elements cemented together, negative achromats are corrected for color and on-axis aberrations. Used predominantly as Barlow lenses to extend focal lengths, they are often combined with positive achromatic mirror systems and imaging lenses.