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Specifications

  • Description: Achromatic Hand Figured Lens in Push-Pull style cell
  • Lens Diameter: 234mm
  • Clear Aperture: 228mm
  • Number of Elements: 2
  • Focal Length: 1800mm
  • Focal Ratio: f/7.7
  • Type of Coating: Broadband Multilayer Film (Yellow)
  • Fully Multi-Coated: Yes
  • Average Strehl Ratio: 0.88
  • Weight (Incl. Cell): 5.4 kg (11.88 lbs)
  • Cell OD: ---
  • Hand Figured: Yes