From the Manufacturer:
World’s smallest lightest interchangeable lens full-frame camera: Sony’s Exmor image sensor takes full advantage of the Full-frame format, but in a camera body less than half the size and weight of traditional full-frame DSLRs
Ultimate full frame 36.3 MP resolution with gapless sensor lens design: The unrivaled 36.3-effective-megapixel resolution and outstanding optical lens performance are optimized by removing the optical low-pass filter. In combination with the new BIONZ X image processing engine, this design enhances the reproduction of the finest of details. In addition, the sensor includes a new gapless lens design that fills the space between neighboring pixels to significantly increase light collecting efficiency and realize high corner-to-corner image quality.
Fast Intelligent AF for responsive, accurate, and greater operability with full frame sensor: The high-speed image processing engine and improved algorithms combine with optimized image sensor read-out speed to achieve ultra-high-speed AF despite the use of a full-frame sensor.
Eye AF control: Even when capturing a subject partially turned away from the camera with a shallow depth of field, the face will be sharply focused thanks to extremely accurate eye detection that can prioritize a single pupil. A green frame appears over the prioritized eye when focus has been achieved for easy confirmation. Eye AF can be used when the function is assigned to a customizable button, allowing users to instantly activate it depending on the scene.
Fully compatible with Sony’s E-mount lens system and new full-frame lenses: To take advantage of the lightweight on-the-go body, the a7R is fully compatible with Sony’s E-mount lens system and expanded line of E-mount compact and lightweight full-frame lenses from Carl Zeiss and Sony’s premier G-series.
Direct access interface for fast, intuitive shooting control: Quick Navi Pro displays all major shooting options on the LCD screen so you can rapidly confirm settings and make adjustments as desired without searching through dedicated menus. When fleeting shooting opportunities arise, you’ll be able to respond swiftly with just the right settings.
High contrast 2.4M dot OLED EVF for eye-level framing: View every scene in rich detail with the XGA OLED Tru-Finder, which features OLED improvements and the same 3-lens optical system used in the flagship a99. The viewfinder faithfully displays what will appear in your recording, including the effects of your camera settings, so you can accurately monitor the results. You’ll enjoy rich tonal gradations and 3 times the contrast of the a99. High-end features like 100% frame coverage and a wide viewing angle are also provided.
3.0" 1.23M dot LCD tilts for high and low angle framing: The tiltable 3.0” (1,229k dots) Xtra Fine LCD Display makes it easy to photograph over crowds or low to capture pets eye to eye by swinging up approx. 84° and down approx. 45°. Easily scroll through menus and preview life thanks to WhiteMagic technology that dramatically increases visibility in bright daylight. The large display delivers brilliant-quality still images and movies while enabling easy focusing operation.
Simple connectivity to smartphones via Wi-Fi or NFC: Connectivity with smartphones for One-touch sharing/One-touch remote has been simplified with Wi-Fi/NFC control. In addition to Wi-Fi support for connecting to smartphones, a7R also supports NFC (near field communication) providing “one touch connection” convenience when transferring images to Android smartphones and tablets. Users need only touch devices to connect; no complex set-up is required. Moreover, when using Smart Remote Control — a feature that allows shutter release to be controlled by a smartphone — connection to the smartphone can be established by simply touching compatible devices.
PC control w/ remote video capture control: Remote Camera Control allows you to control your a7R from your PC using a USB cable. Feature control has also been updated to include video capture control.
14-bit RAW output for rich tonal gradation: 14-bit RAW image data of extremely high quality is outputted by the a7R. This data fully preserves the rich detail generated by the image sensor during the 14-bit A/D conversion process. When developed with Sony’s Image Data Converter RAW development software, these images deliver the superb photographic expression and rich gradation that only 14-bit data can offer.
New BIONZ X image processing engine: Sony proudly introduces the new BIONZ X image processing engine, which faithfully reproduces textures and details in real time, as seen by the naked eye, via extra high-speed processing capabilities. Together with front-end LSI (large scale integration) that accelerates processing in the earliest stages, it enables more natural details, more realistic images, richer tonal gradations and lower noise whether you shoot still images or movies.
Full HD movie at 24p/60i/60p w/uncompressed HDMI output: Capture Full 1920 x 1080 HD uncompressed clean-screen video files to external recording devices via an HDMI connection in 60p and 60i frame-rates. Selectable in-camera AVCHD codec frames rates include super-smooth 60p, standard 60i or cinematic 24p. MP4 codec is also available for smaller files for easier upload to the web.
Gapless, optimally positioned on-chip lenses: Sony optimized the design and positioning of every on-chip lens (OCL) covering every pixel to significantly enhance light-gathering efficiency. A gapless on-chip lens design eliminates the gaps between the micro-lenses to collect more light. Moreover, each on-chip lens is optimally positioned depending on its location to accommodate the sharper angle of light entering the periphery, which is caused by larger sensor dimensions being teamed with the E-mount’s short flange-back distance.
Multi-interface Shoe for flash and microphone flexibility: Unlike conventional cameras, the a7R features the advanced Multi-Interface Shoe that dramatically expands compatibility with Sony digital imaging accessories, thus raising the potential for photo/movie shooting.
4K Still image output by HDMI or WiFi for viewing on 4K TVs: Enjoy Ultra High Definition slide shows directly from the camera to a compatible 4K television. The a7R converts images for optimized 4K image size playback (8MP). Enjoy expressive rich colors and amazing detail like never before. Images can be viewed via an optional HDMI connection4 or via WiFi.
TRILUMINOUS color outputs wider color gamut to compatible devices: TRILUMINOS Color technology, allows you to experience photos and movies in rich, natural colors on any TV equipped with a TRILUMINOS Display. The expanded color gamut immerses you in those unforgettably colorful moments, from the complex shades in a shimmering blue sky to the delicate skin in a baby’s face.
PlayMemories Camera Apps allows feature upgrades: Personalize your camera by adding new features of your choice with PlayMemories Camera Apps. Find apps to fit your shooting style from portraits, detailed close-ups, sports, time lapse, motion shot and much more. Use apps that shoot, share and save photos using Wi-Fi that make it easy to control and view your camera from smartphone, and post photos directly to Facebook or backup images to the cloud without connecting to a computer.
Image Data Converter: Advanced features enable manipulation, conversion and management of full-resolution RAW images. You can expertly adjust exposure, white balance, tonal curves, saturation, contrast, hue and sharpness — as well as apply DRO and vignetting compensation. Bundled Remote Camera Control software also lets you remotely activate and deactivate still/movie recording and control various camera settings from a PC.
Vertical Grip Capable: Enjoy long hours of comfortable operation in the vertical orientation with this sure vertical grip, which can hold two batteries for longer shooting and features dust and moisture protection.
Mount Adaptors: Both of these 35mm full-frame compatible adaptors let you mount the a7R with any A-mount lens. The LA-EA4 additionally features a built-in AF motor, aperture-drive mechanism and Translucent Mirror Technology to enable continuous phase-detection AF. Both adaptors also feature a tripod hole that allows mounting of a tripod to support large A-mount lenses.