Stop Throwing Away Less Than Perfectly Sharp Images
Image sharpness is, for the most part, a false economy. It is mistakenly believed to be synonymous with image quality; that isn't the case. One major difference is that image quality has a ceiling and once reached (if that's even possible), the image cannot be any better in terms of quality. However, with the sharpness of an image, you can far exceed the perfect amount (again, if there is such a thing), and it begins to cost your image dearly.