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Stargazing June 15th ✦ 6pm-10pm
Stargazing June 15th ✦ 6pm-10pm

Istar 204mm (8") f/5.9 Objective

SKU LNAC-204-060

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  • Description: Achromatic Hand Figured Lens in Push-Pull style cell
  • Lens Diameter: 210mm
  • Clear Aperture: 204mm
  • Number of Elements: 2
  • Focal Length: 1200mm
  • Focal Ratio: f/6
  • Type of Coating: AR Broadband Multilayer SiO2 Film, 6 Layers (Green)
  • Fully Multi-Coated: Yes
  • Average Strehl Ratio: 0.88
  • Weight (Incl. Cell): 4.90 kg (10.8 lbs)
  • Cell OD: 246mm
  • Hand Figured: Yes
  • Minimum Surface Quality: PV/4