Lens Focal length [mm] | Nominal field [mm]2 | Minimum field [mm]2 | Typical working distance [mm] | Diameter of the laser beam [µm] |
370 | 198 × 198 | 241 × 297 | 350 ± 5 | 540 |
200 | 110 × 110 | 134 × 165 | 190 ± 3 | 290 |
125 | 74 × 74 | 80 × 105.6 | 128 ± 2 | 180 |
80 | 27 × 27 | 33.5 × 41.2 | 74 ± 1 | 116 |