The soc_nightvision_1.0.rar file you have requested: Clear Sky / Mods / Singleplayer / SOC Nightvision - 1.03kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Clear Sky and upload any files you want to share or are missing. This is the only information we could locate:
Very simple. it replaces the new nightvision with the old ones from SOCthat is both brighter and better in quality if you ask me.