2.2.2 spase://SMWG/Instrument/YNAO/Telescopes YNAO Telescopes 2012-05-23T19:05:20Z The synoptic observations at YNAO (Yunnan Astronomical Observatory, Kunming, China) are carried out in a solar tower which hosts a twin telescope. Both telescopes have 18 cm aperture and one of them is the full disk H-alpha telescope. Filter bandpass is 0.05 nm and tunable filter range is +/-0.1 nm. A 2K x 2K CCD camera is used spase://SMWG/Person/Jun.Lin GeneralContact spase://vspo/instrument/264 Imager YNAO H-alpha Telescope spase://SMWG/Observatory/YNAO