Newport 100mm Single Surface Optical Flat, Master Grade 0.000002" (L/10), BK7
in Original Plastic Storage Box.
New.
Specs:
- Material: BK7
- Diameter: 100mm
- Thickness: 19mm
- Wedge: < 3 arcmin
- Surface 1 quality: Mil spec 10-5
- Surface 1 flatness: master grade 0.000002" (L/10)
- Surface 2: fine ground