| Main mirror diameter | 6 m |
| Focal length | 24 m |
| Light collecting area | 26 sq.m |
| Wavelength range | 0.3 - 10 mkm |
| Angular resolution | 0.6 arcsec |
| - with the application of speckle | |
| interferometry techniques | 0.02 arcsec |
| Mass of the main mirror | 42 tons |
| Total telescope mass | 850 tons |
| Telescope height | 42 m |
| Dome height | 53 m |
| Limiting stellar magnitude (1994) | 26 |