Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request.
| CASTECH, Inc. | |
|---|---|
| Product Category | Optical Lenses |
| Product Number | LBC-508-R779-BK7 |
| Product Name | Bi-Concave Lenses |
| Lens Type | Spherical Lens |
| Diameter / Length | 50.8 mm (2 inch) |
| Radius of Curvature | -77.94 mm (-3.07 inch) |
