The FDR-AX43A's Dual Video mode enables you to record MP4 movies simultaneously with your XAVC S 4K video, perfect for playback on your phone and faster uploading to your network or the web. The Dual Video Mode also enables the use of the Highlight Movie Maker, a one-button function that creates a highlight reel of your footage you can quickly play back at an event. A 4K time-lapse mode can be used to condense your adventures or capture stunning nature or atmospheric sequences.

The CMOS sensor provides enhanced sensitivity for capturing high-quality images with less noise under dark as well as bright shooting conditions.

The FDR-AX43A's integrated gimbal with Balanced Optical SteadyShot image stabilization cushions your images against shaking and jarring, even while running or zoomed in.

The Fast Intelligent AF uses accurate contrast-detection autofocus to minimize lens motion, predicting the AF range, and accelerating lens drive, so you can capture more fleeting moments.

The microphone is designed to gather clear sound from five directions, making it possible to faithfully reproduce audio with clearly defined separation.

The FDR-AX43A records 4K and HD movies in the XAVC S format, which uses MPEG-4 AVC/H.264 for video compression and linear PCM for audio compression, while saving files in an MP4 wrapper, which allows for extensive record times and easy editing. Additionally, you can choose to record HD in AVCHD (ideal for HDTV and Blu-ray disc burning) or MP4 (ideal for sharing over the internet).

Capture 4K still images continuously over an extensive period of time at a selected constant interval from each shot to the next, edit the entire sequence of still images in postproduction, and enjoy playback of that series of images as a time-lapse movie.

Enhance your viewing experience, even without a 4K television. Using super-sampling, the camera automatically down-converts 4K footage to exceptionally detailed Full HD.

Timecode and User Bit can be added to movies as data elements. The Timecode function records hours/minutes/seconds/frames on image data for precise advanced video editing. The User Bit function records information such as date, time, and scene number in eight-digit arbitrary numbers, and is useful for editing movies using two or more cameras.

The flip-out, tilting 3" 921K LCD provides a crisp view perfect for viewing, playback, or vlogging.

Highlight Movie Maker automatically selects the best scenes from your videos and creates a short MP4 highlight reel of your recorded action to share and enjoy instantly.

Share the adventure as it happens via Ustream live streaming. Now your circle of friends and family can share the excitement in real time by simply logging in to Ustream from anywhere. You can also link your favorite social accounts to notify your friends when you start streaming video.

Add a different point of view by including other camera angles to your movies. Connect to up to five compatible Sony cameras via Wi-Fi and use the camcorder's LCD to preview what the other cameras are seeing and simultaneously start recording on all synced cameras. After recording, you can use the PlayMemories Home software (available as a free download on Sony's website) to easily edit and create multiview movies.

Intelligent Auto mode goes a step beyond traditional auto modes by analyzing your shot and then automatically selecting the appropriate settings from ten distinct scene modes and wind noise reduction. There are 60 different combinations possible: Portrait, Baby, Tripod, Backlight, Landscape, Spotlight, Twilight, Macro, and Low light.

Expand photographic and movie shooting possibilities by attaching optional accessories via the Multi Interface Shoe. Attach an electronic viewfinder, external flash, stereo microphone, or even a compatible remote control via the Multi Terminal.

Connect to your 1080p HDTV via the camcorder's HDMI output and select a specific portion of the 4K picture for playback. You can move the section using the camcorder's menu toggle and scale it using the zoom lever.