Liquid-crystal spatial light modulator (LC-SLM) has the attractive advantages of large number of correcting elements, low applied voltage, easy control and low cost etc. as an emerging wave-front corrector. Based on the investigation of its time-space characteristics, the capability and limitations of LC-SLM in adaptive astronomical imaging application systems were discussed. An adaptive optical system with a LC-SLM and a Shack-Hartmann sensor was close-looped. As a result, a static aberration, which is mai...