Newport 60QB40 6" Dia. L/10 BK7 Dual Surface Optical Flat, Master Grade 0.000002"
in Original Plastic Box.
Specs:
- Material: BK7
- Diameter: 6"
- Thickness: 0.4"
- Wedge: < 5 arcmin
- Surface flatness (both sides): master grade 0.000002" (L/10)
New price: $2650