NEX7 does B/W. Sony 18-200LE.
The short answer is YES but at a considerable cost. If B&W is your prefered medium then the new monochrone Leica is the ultimate in portable cameras. It has a special sensor optimised for B&W which gives sharper images , better gradation & micro contrast.
The cost in body & lenses is considerable although if you shoot manly landscapes you may get away with just one lens suited to your style. The other point to consideris that although the initial cost is high Leica equipment is well supported & keeps its value well in the long term.
IF cost is a deterent then have a look at MR`s evaluation of the fixed lens half frame Sigma compacts on LuminousLandscape.com. The combination of the new sensor & matched lenses produce very good B&W images. There are some revealing comparisons with other cameras.
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