IMO, this obsession with smoothness destroys the very characteristics that make this camera different than many other digital cameras.
Yesterday Irakly and I were discussing the qualities of the ND with Zeiss glass, and the Epson RD-1 with Leica glass, which both use CCD sensors verses CMOS. In both cases we agreed that using German designed glass with CCD sensors produces a more film like feel to the photos than those from our Canon machines (D20, 1DMKII, 1DsMKII using L glass).
The image s&les posted above simply look plastic to me. A sure sign of digital. The dog photo is a very nice capture, but after the post work the hair now looks sculpted from polyester and the leaves like those from an artificial plant store.
Both Irakly and I also see that film quality in the images produced using a Kodak 645C Proback with a CCD sensor on a Contax 645 using Zeiss lenses. Irakly's work with this camera, lens and back is phenomenal. So much so that Lexar is featuring his stunning images on their web site.
Both Leica and Zeiss lenses distinguish themselves in the area of micro detail. With proper exposure, and post processing care the ND is quite useable to ISO 250 and even above with correct technique and reasonable expectations similar to what's expected from film of that ISO range and then scanned. If you run a program that eliminates that micro detail, you might as well be using Sigma glass IMO.
Attached is an Epson RD-1 wedding image using a 6 meg CCD sensor and a Leica M lens. It favors emotional impact like film produces, over smooth rendition of every aspect. The detail in the veil is incredible.
In short, don't become pixel peepers at the price of the emotional impact the ND can produce with a little re-thinking.
Irakly should give a seminar on how to pull the most out of the ND. What he does with it is nothing short of amazing and emotionally fulfilling.