Price:Negotiable

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Material:BK7,UV-grade fused silica
Paraxial focal length:±5mm—±3000mm±1%
Length:2mm—300mm±1%
Width:2mm—200mm±1%
Surface quality:60-40scratch and dig
Surface Figure:?/4,?/2
Centration:3arc min
Thickness Tolerance:±0.20mm
Clear Aperture:90%