Specification :-
| Range Of Measurement | -10 To +110s (Positive Scale) |
| +10 To -110s (Negative Scale) | |
| Vernier Accuracy | 0.1 S |
| Telescopic Magnification | 4.5 X |
| Polarizing Aperture | 6.5 MM |
| Analyzer | Glans Thompson Prisom & Quartz Wedge. |
| Polarizer & Half Shade | Natural Quartz Crystal Lippich Prisom |
| Filter | Orange Filter With A Spectoral Transmission From 5500 AU to 8000 AU |
| Light Source | Ordinary Bulb Of 100 Watts |
| Pol Tube Length | Suitable For Use With Pol Tubes Up to 400 MM |