Negative cylinders have one flat surface and one concave surface and have a negative focal length.
| Ross Optical Industries | |
|---|---|
| Product Category | Optical Lenses |
| Product Number | L-PCN013 |
| Product Name | Negative Cylinder |
| Lens Type | Cylindrical Lens |
| Lens Application | Infrared (optional feature); Visible (optional feature); Ultraviolet (optional feature) |
| Focal Length | -25.4 mm (-1 inch) |
| Center Thickness | 3.7 mm (0.1457 inch) |
| Edge Thickness | 6 mm (0.2362 inch) |
