Thank you Steve, but I've been in this digital game since the outset and I have become extremely sceptical about any kind of claims, both from dealers as well as users.
Without mentioning names, I had had reps in the studio from all manufacturers, except Sinar.
One of them was convinced that their product was superior to all the competitors. OK, let's see, he came and his demo was the worst disaster and waste of time you can imagine. The demo from a second rep, from another manufactuer was also bad, big software glitch, but since at least I could see some pictures, and he was quite un-pushy about his product (and didn't knock the competition) I gave him a chance for a second demo day when the glitch had been sorted.
My tests were considerably more elaborate than any of the tests posted here, in terms of tell-tale objects to determine highlight detail, shadow separation, text definition, minute scratches on metal, colour saturated patches, specular highlights, grey gradation, etc, etc. These tests bore me to tears, but they have to be done once, to make your choice, after which, they become completely eradicated from my mind.
Correct me if I'm wrong, but the only 4-shot camera of around 39 megapixel I know of is the Hasselblad. OK then, let's compare it to an equivalent and current top of the line one-shot backs, because something from an earlier generation where the difference between 1-shot and 4-shot used to be more noticeable is not really representative of today's quality.
I bet you that the differences are nowhere as great as the samples above, I'd loved to be corrected, because I'm always in seach for better quality.
Edward