see also:

• mirrorless camera systems
• Mamiya / Phase One 645 medium format camera system
• Phase One A series medium format mirrorless cameras
• Alpa website

• modular design with interchangeable digital backs and viewfinders as well as lenses
• “full frame medium format” sensor measuring 53.7×40.4mm with 16bit RAW output
• Schneider Kreuznach leaf shutter lenses to support flash sync to 1/1600th sec
• electronic shutter mode as well as mechanical focal plane shutter
• sensor is 1.5x LARGER than current medium format digital sensors and 2.5x larger than full frame 35mm sensors!
• the Phase One XF IQ4 kits were announced in Aug 2018
  • 100 and 150mp IQ4 backs
  • new Infinity Platform includes Capture One in the camera's RAW image processor
  • three new tethering options: wireless, USB-C, and Ethernet
• Phase One XF IQ3 system was introduced in 2015
  • USB 3.0 and Firewire tethering
  • 50mp, 80mp, 100mp IQ3 CMOS digital backs
  • Sensor+ mode that reduces the pixel count by four but quadruples the maximum ISO from 800 to 3,200

• announced in Aug 2018
• new Infinity Platform includes Capture One in the camera's RAW image processor
• focal plane shutter 1hr to 1/4000th sec
• three new tethering options: wireless, USB-C, and Ethernet
• both SD and XQD memory card slots
• “Capture One Inside” system brings improved preview quality, JPEG processing, IIQ Style integration, improved live view, faster frame rate, and new tools

• Phase One XF IQ4 150MP BSI
  • $51,900
• Phase One XF IQ4 150MP Achromatic BSI
  • $54,990
• Phase One IQ4 100MP Trichromatic BSI
  • $47,990