Image Quality 612 vs DB

[steve pelton]

Greetings,
I shoot with a Noblex 150 and love the quality, however the 50mm lens is too wide in most cases. I am considering the Horseman or Fotoman 612 for more flexibility, but would like opinion on a high quality MF camera with digital back. (Alpa/HorsemanSWD/H2?) This new kit needs to be light to carry and fast to shoot. I also currently use a 4x5 with 612 RFH and find this too slow and cumbersome for the types of shooting I am now doing.

How would you compare the quality of output from the DB when cropped to 612 format?

thanks
Steve