The first step to a good B&W digital print is a good original image file. As such, I thought people on this forum might be interested in this KolariVision product.
KolariVision has a new "Ultra-Thin" cover glass option for digital cameras. I had my Sony a7r (v.1 - 36 mp) converted to this to see if it would give me access to the superior, small and compact Leica M wide angle (and 50mm) optics. It does, with some caveats. The net effect is that for a high mp, relatively compact system, this is going to be hard to beat.
I've posted my initial findings and some samples here:
http://www.paulroark.com/BW-Info/KolariVision-UT-filter.pdf
Paul