For sale is a Sinarback Emotion 22 MFDB (22mp Dalsa Sensor, 36x48 in size) which was in my possession until four years ago and is now again for sale from my friend that got it off me and now has upgraded to another back. The back has been well looked after, there are some minor blemishes in its casing (nothing serious) and the screen glass has some (again minor) surface scratches visible only if the back is turned off.
Price is 1450 Euros with the (rotatable) Mamiya RZ adapter included.
The Contax adapter will set you back another 450 Euros and is only sold if one buys the back with the RZ adapter, it's not for sale as a separate item. Note that prices and the above conditions are not negotiable...
EDIT: In case one is interested to trade his Sinarback 75LV for this back (with the RZ adapter included), he may keep his adapter plate (to use it on the Emotion22 as the two backs are 100% compatible - case is identical) and I'll throw in the deal the fantastic Nikkor 85mm f2.8 PC micro lens (100% usable on both Canon & Sony α7 cameras too via inexpensive adapters) as to compensate for value difference.
(The trade offer may particularly interest Rollei or Sinar HY-6 camera users who intend to sell their HY-6 & Sinarback 75 combination, as they can reduce the asking price for their equipment by just swapping the Emotion 75 back for the Emotion 22 one).
I'm also open to negations for trading with an Imacon 528c/Hasselblad CF-22 MS MFDB...