LEHR Collimator Specifications for Studying γ-Cameras
| Manufacturer | Model | LEHR collimator type | Mean septal thickness (mm) |
| GE Healthcare | Millennium MG | Cast | 0.20 |
| GE Healthcare | Infinia and Discovery NM series | Foil | 0.20 |
| Siemens | e.cam and Symbia | Foil | 0.16 |
| ADAC/Philips | Vertex | Foil | 0.152 (26) |
| Philips | Brightview | Foil | 0.156 (27) |