Sorry, this product is no longer offered for sale. The recommended replacement product is KPA046

OBSOLETE Aspheric Condenser Lens, 55.0 mm Diameter, 38.0 mm EFL, Uncoated

Technical Specs

  • Lens Type
    Aspheric Condenser
  • Lens Shape
    Bi-Convex Aspheric
  • Diameter
    55.0 mm
  • Antireflection Coating
    Uncoated
  • Lens Material
    B270 Optical Crown Glass
  • Surface Quality
    80-50 scratch-dig
  • Back Focal Length (BFL)
    24.5 mm  
  • Edge Thickness (Te)
    1.66 mm  
  • F/#
    0.74
  • Principal Plane 2 (P2)
    -13.50 mm  
  • Centration
    ±25 arc min
  • Radius 2
    124.21 mm  
  • Shape S2
    Convex
  • Diameter Tolerance
    +0/-0.4 mm
  • Focal Length Tolerance
    ±5 %
  • Center Thickness Tolerance
    ±0.25 mm
  • Edge Thickness Tolerance
    ± 0.25mm
  • Clear Aperture
    ≥central 80% of diameter
  • Thickness, Center 1
    20.6 mm  
  • Cleaning
  • Wedge
    Dia. <10, ±30 arc min; 10 <25, ±35 arc min;25 <70, ±30 arc min; 75, ±20 arc min