Now we have the current flagship Sony FDR-AX1 Digital 4K Video Camera Recorder, which goes for $4498 US. This unit is a lot more money than the other current 4k units I previously posted on today, and that is because it offers much more power. We are talking a Back-lit 1/2.3" Exmor R Sensor, Dual Pro XLR jacks, XAVC-S @ 150mps, XQD media card slots, Three ND Filters, TRILUMINOS Color technology, 20x G Zoom lens, and much more...

  • Record 4K 3840 x 2160p Video at 60 fps
  • 1/2.3" Exmor R 8.3MP CMOS Image Sensor
  • Sony G Lens with 20x Optical Zoom
  • Built-In Microphone & Dual Pro XLR Jacks
  • Dual XQD Card Slots for 4K Recording
  • XAVC-S Format for 150 Mbps 4K Recording
  • Three ND Filters & Five Paint Functions
  • Independent Zoom, Focus & Iris Rings
  • Seven Assignable Buttons & HDMI Output
  • Supports TRILUMINOS Color Technology

Here is an excellent Sony AX1 real world review that I found courtesy of Maarten Heilbron