Medium Format photography usually means having to use prime lenses because of the unique constraint for MF over DSLRs or mirrorless designs.
Now Phase One has introduced their second zoom lens for the 645 digital MF system. The new Schneider Kreuznach 40–80mm f/4–5.6 lens costs $9,000 and features a leaf shutter and 15 glass elements in 11 groups, two of which are aspherical. Their press release claims, "excellent optical qualities throughout the zoom range."
The video below shows Richard Thompson III testing this new by photographing the Ford GT40 in the desert.