Price:Negotiable

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Material:optical glass,fused silica,CaF2 and optical crystal
Size:4mm-100mm
Dimension tolerance:±0.2mm
Angle tolerance:30arc sec—30 arc min
Optical paralellism:2arc sec
Flatness:?/10—1?
Surface quality:60—40scratch and dig
Clear aperture:90%
Coating:avaliable upon request