Both Canon and Sony recently introduced advanced-level 4K Ultra HD camcorders with fast auto focus systems desirable for advanced amateur, prosumer and news gathering applications.

Canon introduced three 4K camcorder models in the VIXIA GX10 ($2,499 suggested retail), XF400 ($2,999 suggested retail) and XF405 ($3,499), all of which will be available in November.

Each camcorder features 4K recording at up to 60fps or up to 120fps in Full HD for smooth motion and even slow-motion images. Canon said the models would capture up to 12 stops of dynamic range in Wide DR mode, but HDR shooters will not find Canon Log featured.

The Canon camcorders include 1-inch, 1.0-type 13-2MP CMOS sensor with Dual DIGIC DV6 image processing and the company’s Dual Pixel AF.

Meanwhile, Sony introduced three 4K Ultra HD camcorders with HDR capture capability and including phase detection AF systems targeted at advanced enthusiasts, prosumers and professional news gathering operations.

The three new palm-style models include the (pictured at top) XDCAM PXW-Z90 (shipping in December at a $2,799 suggested retail price), the NXCAM HXR-NX80 (shipping in December at $2,299) and the Handycam FDR-AX700 (shipping in October at $1,899).

All three models incorporate a Fast Hybrid AF system designed to produce rapid and accurate focusing and tracking for sharp 4K images. The AF system features 273 phase-detection AF points that cover approximately 84 percent of the shooting area, high-density placement of autofocus points and a newly developed AF algorithm, Sony said.

Read more on Canon’s and Sony’s advanced level 4K camcorders after the jump:

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