Clicking within a red rectangle on the image below will reveal the crop at full resolution as a set of images shot from wide open to f8.
Crop 1 (176kB) shows background out-of-focus (OOF) rendition and medium contrast performance.
Crop 2 (219kB) shows background OOF rendition, high contrast performance and edge sharpness.
Crop 3 (280kB) shows foreground OOF rendition, high contrast performance and sharpness.
Crop 4 (232kB) shows centre sharpness (low contrast).