Hasselblad H5D-50C w/HC 35mm f/3.5 at f/11, ISO 800, 1 sec
We recently had an intro event for the new CMOS sensor equipped Hasselblad H5D-50C and I had a chance to do some side by side tests with the previous CCD equipped model. The new CMOS 1.3x crop 645 medium format sensor used in the H5D-50C is actually made by Sony, and that's a good thing since they also make the best sensors for the DSLR world. The Nikon D7000, D800 / D800E and even the underlying silicon used in Fujifilm X-Trans sensors are made by Sony for example. What this means for medium format camera systems is that finally, there is a sensor capable of not only superb low ISO sharpness and tonality, but also excellent high ISO image quality with much less chroma noise in the shadows when those shadows need to be opened up in a high dynamic range scenario.
In addition, this new sensor seems to have slightly better highlight dynamic range as well and you can also do much longer time exposures with no need for long exposure noise-reduction, up to 12 minutes in length. This means after a 12 minute exposure, you don't need to wait an additional 12 minutes for the camera to do a "dark frame" - you can start another time exposure immediately.