The P20 is a pro-level digital back offering outstanding performance, even compared to some of the latest 35mm based systems on the market. The sensor is a square format and the specs are listed below: Battery/Charger not included, but quite easy to get hold of. • 16 megapixel CCD • 4,145 x 4,145 total pixels • 36.9 x 36.9 mm (1.5 x 1.5 in) • 9 x 9 µm pixel pitch • 16 bits per pixel ADC Image size • Single exposure: 4,080 x 4,080 • Double exposure: 4,080 x 4,000 Sensitivity • ISO 50 • ISO 100 • ISO 200 • ISO 400 • ISO 800 RAW file • 19 MB (High res, lossless) • 9.5 MB (Low res) LCD monitor • 2.2" TFT LCD • 116,000 pixels • Preview • Histogram • Exposure warning • ISO • Battery status • Buffer status • Storage status LCD functionality • Image browse and delete • ISO & white point setting • Resolution: High or Low Capture rate • Tethered: Up to 50 per minute • Untethered: 35 per minute Storage • Compact Flash Type I/II • Microdrive support • FAT32 support Battery • Lithium-Ion • 300 captures within 4.5 hours Camera support • Hasselblad H