Hyper Suprime-Cam (HSC)
The Subaru HSC survey is an optical survey that started from March 2014. The survey will cover 1400 sq. degree with the depth of median redshift~1. One of the main science targets of the survey is cosmology through weak gravitational lensing. The HSC will provide 100 millions of galaxy images with excellent quality (0.7” seeing), which allows for stringent constraints on cosmological parameters such as the property of dark energy.