2.6-m Shajn Telescope (ZTSh)
2.6-meter reflector ZTSh named after academician G.A. Shajn is the main optical telescope of CrAO. It was built in 1961 by the Leningrad Optical and Mechanical Association (LOMO). The chief designer was B.K. Ioannisiani.
| Primary mirror diameter | 2.6 m |
| Focal length | 10 m |
| Optical systems: |
Primary focus (f/3.85), Cassegrain focus (f/16), Nasmyth focus (f/16) Coude focus (f/40) |
| Equipment: |
Spectrograph SPEM in the Nasmyth focus Spectrograph ASP-14 in the coude focus Echelle spectrograph in the coude focus (ESPL) CCD-camera in the primary focus |
| Coordinates | 44°43′41″ N; 34°00′57″ E |