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Item Description: Achromatic Hand Figured Doublet in Push-Pull style cell
Lens Diameter: 104 mm
Clear Aperture: 100 mm
No of Elements: 2
Focal Length: 1200mm
F-Ratio: f/12
Type of Coating: SiO2 Broadband Multilayer Film (Yellow)
Fully Multicoated: YES
Average Strehl Ratio: 0.93
Weight (incl. cell): 0.95 kg
Cell O.D.: 136mm
HandFigured: YES
Minimum Surface Quality: PV/4