Mirrorless has had some effect on Tech/MFDB sales. We at Arca-Swiss have already addressed this movement for some users, by producing our Universalis series of 6x9 cameras. In this series, you have a body available to mount medium format backs or DSLR/Mirrorless, or even 4x5.
You can purchase the camera in any of the formats and then get a format change kit to jump to one of the other formats. The 110x110 bayonet R lens board allows the lenses from an R line Technical camera to just be bayoneted onto the Universalis, or any of our 6x9 size cameras.
Our bayonet system for mounting the bellows to the cameras allows use with 32mm or 35mm LF style lenses with movement. In addition at Photoplus, we announced the new Canon aperture control board, which will allow a user to mount the Canon 24mm and even 17mm TS lenses on the Universalis, for example, and control the aperture. The Universalis has geared rise/fall and lateral shift movements in the back and MicroOrbix geared tilt, along with dynamic swing, in the front. The front also has geared rise/fall.
The readout is an LED on the front of the board, with buttons to change the aperture and open the aperture fully to focus, then close to the selected shooting iris. This board with its rear movements, allows the image to be corrected and or composed without compromising the perspective or point of view. The 24mm Canon, especially , can also be used with some of the MFDB backs, more or less, depending on sensor size.
Our bellows system also drops mechanical vignetting to an absolute minimum.
Universalis Camera is very light and up to the precision required of digital image making.
Doug at Digital Transitions, Has more info on it. Chris sent a pic from the show.