What is the sharpest macro lens?

The general misconception is that the duration of the flash, no matter how long, will always be short enough to freeze motion and it's not true. You need to brace the camera, keep the subject still, and keep your flash duration as short as possible to get sharp images. Diffraction is a problem at high mag and Fstops, but it's not that bad. The real problem is that diffraction can be amplified by motion, lens sharpness, and even sensor noise.

I take images at high mag and Fstop hand held and have no problem getting sharp images -check out the tutorials in my signature if you want to learn how.

5x @F11

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Also known as Dalantech

My Book: http://nocroppingzone.blogspot.com/2010/01/extreme-macro-art-of-patience.html
My Blog: http://www.nocroppingzone.com
My gallery: http://www.johnkimbler.com
Macro Tutorials: http://dalantech.deviantart.com/gallery/#Tutorials

Always minimal post processing and no cropping -unless you count the viewfinder...