| FEATURES | SIGMA 250 LED |
| Pupil Size | 2 mm |
| Large Pupil to Small Pupil | Separate Adjustments Of Convergence and Parallax |
| Apertures | Small & Large |
| Filters | Red free inbuilt, Cobalt blue & Yellow filters Optional |
| Diffusor | Optional |
| Power Source | Rechargeable Battery Pack |
| Operating Time | 11 hours |
| Rheostate | Battery Pack Mounted |
| Weight | 350 gms with Battery On The Headbend |





