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Specification of aspherical lens as follow:
Material:BK7 or other optical material
Size:10mm-200mm
Fringes:lambda/2
Center Thickness:15nm-25nm
Dispersion round:0.03mm-0.2mm
Centration:3 arc min
Surface Quality:60-40 Scratch/Dig
Clear Aperture:90%
Coating:Available upon Request
