Speaking of Phase One's new IQ3 backs and modular system, Thom Hogan agrees that the IQ system is a cut above the rest:
“- Openness to discussing technology. Unlike the Japanese companies, PhaseOne (and to a large degree Leica, as well) seems to be more than willing to let dealers, reporters, and even some users talk directly to engineers, and to let the engineers actually discuss the technologies in the camera and why certain decisions were made.
I can vouch for the fact that every question I’ve had about PhaseOne’s products in the past few years has been met with a direct and complete answer from an appropriate person within the organization.
- Modularity. To a large degree, most medium format cameras have always been modular, but the return of the waist level viewfinder with matrix metering and the way this new body, finders, and digital backs communicate seems to indicate that PhaseOne has upped their game in terms of building a system that will better handle future upgrades. The whole system seems to have the more modern approach I’ve been advocating in camera design for some time now. ”
Source: Yes PhaseOne