Phase One has designed a new line of medium-format digital camera backs that offer up to 80-megapixel resolution. This new line includes the IQ180, IQ160 and IQ140 backs, each of which varies in resolution (80, 60.5 and 40 megapixels, respectively).

In addition to offering the highest resolution of any SLR back currently on the market, the IQ180 — as well as the IQ160 and IQ140 — has a dynamic range of 12.5 f-stops, features a USB3 connection for faster image transfers, and has a FireWire 800 connection to eliminate buffering delays. This means that the camera can support continuous shooting until a card is filled.

Each back is equipped with a 3.2-inch multi-touch screen, which offers 1.15-megapixel resolution. This detailed screen allows users to verify fine details without having to upload the image onto a computer.

Like a smart phone, the new screen uses context-sensitive controls, such as instant zoom and single-touch enlarging on histograms and highlight warnings. In addition, focus mask mode helps validate depth-of-field and image focus.

Compatibility has also been improved between the IQ digital backs and the Phase One 645DF camera body. Now users can charge the battery whenever the camera body is tethered.

The Phase One IQ180 is expected to be available at the end of April 2011, while the IQ160 and IQ140 are expected to be available at the end of May 2011. Prices for the new digital backs start at $21,990.