- Specifications Material: BK7 Grade A Optical Glass Dimension Tolerance: +0.0, -0.2 mm ..
 
                                                    
                 
                  
                   
                Prisms
Roof Prism
Description
Specifications
| Material: | BK7 Grade A Optical Glass | 
| Dimension Tolerance: | +0.0, -0.2 mm | 
| Clear Aperture: | >80% | 
| Angle Tolerance: | ±3arcmin | 
| Flatness: | λ/2 @632.8 nm | 
| Surface Quality: | 60-40 scratch and dig | 
| Protective Bevel |