DaveI was at the workshop that Guy mentioned.
There were indeed MANY backs there, and this was their niche .... fine art landscape with an IQ180 is simply stunning. Due the the physics of wide angle lenses and DOF/DOV, I really don't understand how a D800 or even a D900 with twice the mega pixels would influence my decision about the lust for a technical camera to shoot in that niche.
At the same time, I shoot sports, as did some other folks at that work shop, and many, if not most had some variety of canikon sitting at home in the closet with some very nice pro level glass. Simple the wrong horse for this course.
That said, one day, a B2 and it's escort passed over head. While most were marveling looking up, I was rushing to my camera bag, pulling out a lowly G3 with a 100-300 and then getting the photo. As near as I know, I was the only one at the workshop to get that shot. So in this very limited niche, the Pany G3 smoked the IQ180 ..... does that mean I should give up on MFDB?
( will post the image soon )
No matter how you slice it, a generalist will never beat a specialist when looking at a specialty! You may get close, and be willing to make compromises, but in their niche, MFDB rules. Surly challenged, and defiantly the laws of diminishing marginal returns hold, but to get the absolute best fine art images, ( assuming the muse is equal for all ) MFDB will still be required.
I say that with a certainty that ignores some truly disruptive technology yet to be invented. A new 3D live-viewing immersion display will sway me, but as long as we are putting 3D images on 2D displays, MFDB is my choice for fine art work, landscape or studio.
You need to post the image of the B2 It was pretty cool to see that flying overhead that afternoon.