[dansan]

When I make render my work, it doesn't become sharp (clear). Why?
"Simple level(defaul 25) and rendering time(defaul 1)": what settings are correct to optain a sharp(clear) render in few minute?

[Olivier Cugniet]

default sampling 25 -> you have to wait a few hours to obtain this sampling level (depending on your scene and your computer)
set the time to 120mn and see....