Sony recently announced the Sony Alpha 7S to their family of Sony A7 and A7R. The innovative 7S camera features a newly developed, 12.2 effective megapixel 35mm full frame Exmor® CMOS sensor paired with a powerful BIONZ X image processor, allowing it to shoot at a sensitivity range of ISO 50 – 409,600[1] with unprecedented dynamic range and low noise. The new model is also the world’s first camera to utilise the entire width of a full-frame image sensor in 4K video acquisition, and does this without cropping or line skipping as it can read and process data from every one of the sensor’s pixels. This allows 4K video shooters to utilise all of the artistic and creative benefits provided by the unique sensor.

A7S (1)

Wide ISO Sensitivity (ISO 50 409,600)2 and Impressive Dynamic Range

Sony, the world’s largest manufacturer of image sensors[2], has developed a unique 12.2 MP sensor with extraordinary sensitivity that allows the 7S camera to collect dramatically more light than traditional cameras and to produce beautifully detailed, low-noise images in even the darkest environments.

The camera also features a newly developed on-sensor technology that allows it to optimise the dynamic range throughout the entirety of the ISO 50 – 409,600 sensitivity range. And this on-sensor technology also broadens the range of tonal gradation in bright environments while also minimising noise in dark scenes, allowing the camera to deliver impressive results in these extreme conditions where other cameras (and image sensors) typically struggle.

A7S_Lifestyle (2)

World’s First Full-Frame Camera with Full Pixel Read-out[3] (without pixel binning) during Movie Shooting

With the new 7S camera, the high-speed read out of the 35mm full-frame image sensor combined with the high-speed processing of the BIONZ X processor enables significant improvements in video quality.

These powerful components allow the camera to process data from all of the sensor’s pixels and output stunning HD and 4K (QFHD 3,840 x 2,160 pixels) video4 while utilising the full-width of the sensor. In addition to the benefits for low-light shooting, the read out of all pixels frees the video from aliasing, moiré and false color artifacts (as opposed to pixel binning) to achieve the highest quality video.

A7S (3)

Additional Pro-Quality Video Functions

In video mode, the 7S can output 4K video[4] at QFHD (3,840 x 2,160)[5] to an optional external 4K compatible recorder, and can record full HD (1,920 x 1,080) at frame rates of 60p, 60i, 30p and 24p directly to a compatible memory card. Video modes can be changed from full-frame to APS-C (super 35mm equivalent) if desired, and in this crop mode, the camera can support high frame rate 120fps shooting at standard HD resolution (1,280 x 720p), creating a 5x slow-motion effect.

The 7S camera is also equipped with S-Log2 gamma. Common to Sony’s range of professional video cameras, S-Log2 expands the dynamic range by up to 1,300% to minimise clipped highlights and loss of detail in shadows. Additionally, for the first time ever in a Sony  camera, the 7S adopts the workflow-friendly XAVC S recording format in addition to AVCHD and MP4 codecs. XAVC S format allows for full HD recording at a data rate of 50 mbps with lower compression for improved video quality.

Other specialist video functions on the new camera include a picture profile that can adjust settings like gamma, black, level and color adjustment, and can be saved for use in a multi-camera shoot. It also has Full HD and 4K base band HDMI® output, time code/user bit for easier editing, synchronous recording feature with compatible devices, various marker and zebra displays on both the LCD screen and viewfinder and can dual record XAVC S as well as MP4 (1,280 x 720 @ 30p).

The camera also has a Multi-terminal interface shoe that is compatible with Sony’s XLR Adaptor Microphone Kits (XLR-K1M plus a new model under development), allowing the use of professional microphone systems.

A7S (6)

Low-light Shooting Advantages

The high ISO sensitivity range of the 7S camera is extremely effective for still image shooting, especially in low-light conditions, where the camera can shoot at high shutter speeds while keeping noise as low as possible. This is particularly useful for shooting indoor, dimly lit sporting events or other situations where most cameras typically struggle

The camera is also equipped with the same high-precision Fast Intelligent AF system as the 7R camera, with drastically improved low-light AF sensitivity that can go as low as -4EV.

A7S Sample Shot (2)

Expanding  Mount System and New Power Zoom Lens for Movie Shooting

Directly compatible with the growing family of E-mount lenses, the 7S camera can also be used with A-mount and others lens systems with optional adapters. Sony’s complete  lens system now includes 54 total lenses for both A and E mounts, including several premium offerings from Carl Zeiss® and G Series Lenses.

As a whole, Sony’s E-mount lens system is particularly well-suited for video shooting, with a variety of models containing “movie-friendly” features like smooth focusing, powered zoom control, and silent iris/aperture control. Building on this, Sony has announced development of a brand new, full-frame power zoom 28-135mm F4 lens E-mount lens that is an ideal match for the powerful movie capabilities of the 7S model.

Pricing and availability of the 7S full-frame interchangeable lens camera will be announced at a future date. To learn more about the product in the meantime, please visit www.store.sony.com, and follow #SonyAlpha on twitter for the latest  camera news.

Specifications Sheet

General
Lens mount    E-mount
Image sensor
Type 35mm full frame (35.6 x 23.8mm), Exmor CMOS sensor
Number of pixels (effective) Approx. 12.2 megapixels
Recording system (still images)
Recording format JPEG (DCF Ver. 2.0, Exif Ver. 2.3, MPF baseline compliant), RAW (Sony ARW 2.3 format)
RAW output 14 bit
Recording system (movies)
Recording format XAVC S / AVCHD format Ver. 2.0 compliant / MP4
Video compression XAVC S: MPEG-4 AVC/H.264
AVCHD: MPEG-4 AVC/H.264
MP4: MPEG-4 AVC/H.264
Audio recording format XAVC S: LPCM, 2ch
AVCHD: Dolby Digital (AC-3), 2ch, Dolby Digital Stereo Creator
MP4: MPEG-4 AAC-LC, 2ch
Image size (pixels) XAVC S: 1920 x 1080 (60p/50Mbps, 30p/50Mbps, 24p/50Mbps), 1280 x 720 (120p/50Mbps)
AVCHD: 1920 x 1080 (60p/28Mbps/PS, 60i/24Mbps/FX, 60i/17Mbps/FH, 24p/24Mbps/FX, 24p/17Mbps/FH)
MP4: 1440 x 1080 (30fps/12Mbps), 640 x 480 (30fps/3Mbps)
Movie functions Audio Level Display, Audio Rec Level, Auto Slow Shutter, HDMI info. Display (On/Off selectable), Time Code/User Bit, Picture Profile, Creative Style, Picture Effect, Rec Control, Dual Video Rec, Marker Setting
Picture Profile Yes (Off / PP1-PP7) Parameters: Black level, Gamma (Movie, Still, Cine1-4, ITU709, ITU709 [800%], S-Log2), Black Gamma, Knee, Colour Mode, Colour Level, Colour Phase, Colour Depth, Detail, Copy, Reset
Clean HDMI output
Output signal 3840 × 2160(30p/24p) / 1920 × 1080(60p/60i/24p)

YCbCr 4:2:2 8bit/ RGB 8bit

Media
Media Memory Stick PRO Duo, Memory Stick PRO-HG Duo, Memory Stick XC-HG Duo, SD memory card, SDHC memory card (UHS-I compliant), SDXC memory card (UHS-I compliant)
Focus system
Type Contrast-detection AF
Focus point 25 points
Sensitivity range EV -4 to EV 20 (at ISO 100 equivalent with F2.0 lens attached)
Exposure control
Metering type 1200-zone evaluative metering
ISO sensitivity (Recommended Exposure Index) Still images: ISO 100-102400, Movies: ISO 200-102400 equivalent (both expandable to 409600,for still: expandable down to 50)
Viewfinder
Type XGA OLED, 1.3cm (0.5 type) electronic viewfinder (colour)
Total no. of dots 2,359,296 dots
Field coverage 100%
Magnification Approx. 0.71x (with 50mm lens at infinity, -1m-1)
LCD screen
Type 7.5cm (3.0 type) TFT drive
Total number of dots 921,600 dots
Adjustable angle Up approx. 90 degrees, down approx. 45 degrees
Other features
PlayMemories Camera Apps Yes
Interface
Wireless LAN (built-in) Wi-Fi Compatible, IEEE802.11b/g/n (2.4GHz band)*1
Playback of still images and movies on smartphones, PCs and TVs
NFC™ Yes (NFC Forum Type 3 Tag compatible, One-touch remote, One-touch sharing)
Multi Interface Shoe Yes
HD output HDMI micro connector (Type-D), BRAVIA Sync (link menu), PhotoTV HD, 4K still image playback
Shutter
Type Electronically controlled, vertical-traverse, focal-plane type
Shutter speed Still images: 1/8000 to 30 sec., Bulb
Movies: 1/8000 to 1/4 (1/3 step), Up to 1/60 in AUTO mode (up to 1/30 in Auto Slow Shutter mode)
Electronic front curtain shutter Yes, On/Off
Power
Battery Rechargeable battery pack NP-FW50
Still images Approx. 320 shots (viewfinder) / approx. 380 shots (LCD screen) (CIPA standard)
Movies Actual*2: Approx. 55 min with viewfinder, approx. 60 min with LCD screen (CIPA standard)
Continuous*3: Approx. 90 min with viewfinder, approx. 90 min with LCD screen (CIPA standard)
External power AC Adaptor AC-PW20 (optional)
Weight
Body only Approx. 446g
Dimensions
W x H x D (excluding protrusions) Approx. 126.9 x 94.4 x 48.2mm
Operating temperature
Range 0-40°C
Specifications and features are based on information available at the time of printing and are subject to change without notice.

*1 Configuration method/Access method: WPS or manually/infrastructure mode. When Connecting to smartphones, the camera can always work as a base without a wireless access point. (Security: WEP/WPA-PSK/WPA2-PSK)

*2 Indicated recording time is defined by repeating the following cycle: Power on, start recording, zoom, stand-by and power off.

*3 Indicated recording time is defined by repeating the following cycle: Pressing the MOVIE button. No other operations such as zoom are performed.


[1] Standard ISO range: Still 100 – 102,400, Movie 200 – 102,400; Expandable ISO range: Still 50 – 409,600, Movie 200 – 409,600

[2] No.1 image sensor manufacturer for digital camera and video recorders. Based on Sony research – April 2012 to March 2013 (50% market share)

[3] When used in 4K(24p/30p), HD(24p/30p) movie setting

[4] Video baseband output

[5] In video mode, Full HD video (24p/30p) output also can be upconverted to 4K(24p/30p)

* Information and Pictures Courtesy of Sony Singapore and Waggener Edstrom Worldwide *