Sony Electronics show off their 4K prosumer FDR-AX1 camera:
Sony FDR-AX1 4K Camera Highlights:
4K/60p video Ultra HD
1/2.3″ 8.3MP Exmor R® CMOS image sensor
Real-time 4K/60 fps recording
3 ND filters and 6 paint functions
Sony G Lens with 20x (31.5-630mm) zoom
Built-in mic with 2x additional Pro XLR jacks
Recording Specs:
Video Signal : 4K (UHDTV), ITU standard
Microphone/Speaker : Built-in Stereo Microphone, Monoral Speaker
Video Resolution : HD: 1920×1080 60P (50), 1920×1080 30P (50), 1920×1080 24P (50), 1920×1080 50P (50), 1920×1080 25P (50); 4K: 3840×2160 60P (150), 3840×2160 30P (100), 3840×2160 30P (60), 3840×2160 24P (100), 3840×2160 24P (60), 3840×2160 50P (150), 3840×2160 25P (100), 3840×2160 25P (60)
Video Format : XAVC- S format MPEG4-AVC/H264
Mic Level Control : Yes (2steps)
Media Type : XQD Memory Card x 2
Wind Noise Reduction : Yes (Off/On)
Video Actual (Pixel) : Approx. 8300K pixels
For more info on the FDR-AX1 4K camera please see Sony.