The loupe allows you to view image details on any thumbnail or preview. The loupe view includes many features such as, highlight and low light clipping, color values and pixel coordinates. A secondary loupe is available to compare details of 2 photographs at the same time.
You can choose between two models of Loup ; A square version and a round version.
To get started, if you are in "focus on cursor" mode, just move your mouse over the photo, or if you are in "focus on loupe" mode, just move the loupe over the photo.