The only reason I'm posting this image is because of the detail in the leaves in the foreground. This image was shot at f5.6 because I wanted as much DOF as possible and at f5.6 you are really at the limit of the CX format sensor. It doesn't really matter at what aperture you set on the 18.5 f1.8 because it's sharp throughout the range. The only difference is the DOF.
If you're looking for a system that has small sharp lenses at all apertures, and most importantly, wide open, look no further than the Nikon 1 system.
If you're looking for a system that has small sharp lenses at all apertures, and most importantly, wide open, look no further than the Nikon 1 system.