The P65+ back’s CCD is a 53.9mm x 40.4mm chip that offers 60.5-megapixel resolution. The dimensions of the sensor make it close enough to the size of a frame of 645 medium-format film to be considered full-frame medium format, allowing lenses to be used without a conversion factor. The P65+ back outputs 180MB, 8-bit RGB files that are supported by Phase One’s Lens+ and Focus+ software technologies for correcting optical flaws. According to Phase One, the P 65+ back offers 12.5 stops of dynamic range and 1fps capture. Its light-sensitivity settings range from ISO 50 to ISO 800, and the back supports exposures from 1/4000 second to 1 minute.

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