| Brand | Crescent |
| Usage/Application | Interferometer and Optical Testing |
| Surface Flatness | Lambda/4 or Lambda/10 per 25mm @632nm |
| Thickness | 4mm - 10mm |
| Dimension Tolerance | -0.1mm |
| Surface Quality | 60/40 |
| Shape | Circular, Square |
| Wedge Angle | 10 - 30 arc minute |
| Material | BK7 |
| Size | 25mm - 50mm |
| Country of Origin | Made in India |

Price:
Price 9500 INR / Piece
Minimum Order Quantity : 1 Piece
Size : Standard diameters: 12.5 mm, 25 mm, 50 mm (custom sizes available)
Material : Optical glass with interference coating, anodized aluminum mount
Lens : Optical glass substrate
Resolution : Narrow bandwidth, typically 530 nm FWHM
Price 1500 INR / Piece
Minimum Order Quantity : 5 Pieces
Size : 25mm, 50mm
Material : Glass
Lens : Achromatic
Price 1500.00 INR / Piece
Minimum Order Quantity : 5 Pieces
Size : 7mm 100mm
Material : BK7
Lens : Planoconcave, Biconcave, Plano Convex, Biconvex
Resolution : Light FocusingV
Price 2500 INR / Piece
Minimum Order Quantity : 5 Pieces
Size : 40mm, 50mm
Material : BK7