Sony a7S Mirrorless Digital Camera

Model #ILCE7S/B

USA Version
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Viewfinder Size 0.5"
Viewfinder Magnification Approx. 0.71x
Viewfinder Coverage 100%
Viewfinder Eye Point 27.00 mm
Viewfinder Pixel Count 2,359,296
Viewfinder Type Electronic
Screen Coverage 100%
Display Screen 3" Rear Touchscreen Tilting  LCD (921,600)
Diopter Adjustment - 4 to +3 m


Operating/Storage Temperature Operating
32 to 104°F (0 to 40°C)
AC Power Adapter AC-PW20 (Optional)
Battery 1x NP-FW50  Rechargeable Lithium-Ion Battery Pack, 7.2VDC, 1080mAh


Weight 1.08 lb / 489 g with battery and memory card
Dimensions (WxHxD) 5.0 x 3.7 x 1.9" / 126.9 x 94.4 x 48.2 mm


Wi-Fi Capable Yes
Continuous Shooting Up to 5 fps
Self Timer 10 sec, 2 sec
Connectivity 1/8" Headphone, 1/8" Microphone, DC Input, HDMI D (Micro), Micro-USB
Software System Requirements Windows: Vista (SP2), 7 (SP1), 8
Mac: OS X 10.6 or later


Sensor Type / Size CMOS, 35.8 x 23.9 mm
Dust Reduction System Yes
Camera Format Full-Frame
Aspect Ratio 3:2, 4:3
Max Resolution 12MP: 4240 x 2832
Pixels Actual: 12.4 Megapixel
Effective: 12.2 Megapixel
Lens Mount Sony E-Mount
Bit Depth 14-bit
File Formats Still Images: JPEG, RAW
Movies: MP4, MPEG-4 AVC/H.264
Audio: AAC LC, AC3, Dolby Digital 2ch, Linear PCM
Memory Card Type SD
Memory Stick PRO Duo (High Speed)
Memory Stick PRO HG-Duo
Memory Stick XC-HG Duo

Focus Control

Focus Mode Continuous-servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-servo AF (S)
Focus Type Auto & Manual
Autofocus Points Contrast Detection: 25


Built-in Flash No
Flash Compensation -3 EV to +3 EV (in 1/3 or 1/2 EV steps)
External Flash Connection Hot Shoe, Proprietary
Flash Modes Auto
Hi-Speed Sync
Rear Sync
Red-eye Reduction
Slow Sync
Max Sync Speed 1 / 250 sec

Exposure Control

Burst Rate Up to 5 fps at 12.2 MP for up to 200 frames
Up to 2.5 fps at 12.2 MP for up to 200 frames
ISO Sensitivity Auto, 100-102400 (Extended Mode: Auto, 50-409600)
Shutter Type: Electronic & Mechanical
Speed: 30 - 1/8000 sec, Bulb Mode
Type: Electronic & Mechanical
Speed: 1/4 - 1/8000 sec in Movie Mode
Remote Control RM-VPR1 (Optional)
Metering Method Center-weighted average metering, Multi-zone metering, Spot metering
Exposure Modes Modes: Aperture Priority, Auto, Intelligent Auto, Manual, Movie, Programmed Auto, Scene Selection, Shutter Priority, Superior Auto, Sweep Panorama
Metering Range: EV 3.0 - EV 20.0
Compensation: -5 EV to +5 EV (in 1/3 or 1/2 EV steps)
White Balance Modes Auto, Cloudy, Color Temperature, Color Temperature Filter, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater

AV Recording

Video Clip Length Not Specified By Manufacturer
Video Recording Yes, NTSC
Audio Recording Built-in Mic: With Video, Stereo
Optional External Mic: With Video
Resolution 1920 x 1080: 60 fps, 50 fps, 30 fps, 25 fps, 24 fps
1280 x 720: 120 fps, 100 fps
1440 x 1080: 30 fps, 25 fps
640 x 480: 30 fps, 25 fps
Video Format High Definition
1920 x 1080p / 60 fps (50Mbps)
1920 x 1080p / 30 fps (50Mbps)
1920 x 1080p / 24 fps (50Mbps)
High Definition
1920 x 1080p / 50 fps (50Mbps)
1920 x 1080p / 25 fps (50Mbps)
High Definition
1280 x 720p / 120 fps (50Mbps)
1280 x 720p / 100 fps (50Mbps)

1920 x 1080p / 60 fps (28Mbps)
1920 x 1080i / 60 fps (24Mbps)
1920 x 1080i / 60 fps (17Mbps)

1920 x 1080p / 50 fps (28Mbps)
1920 x 1080i / 50 fps (24Mbps)
1920 x 1080i / 50 fps (17Mbps)

1920 x 1080p / 24 fps (24Mbps)
1920 x 1080p / 24 fps (17Mbps)

1920 x 1080p / 25 fps (24Mbps)
1920 x 1080p / 25 fps (17Mbps)

1440 x 1080p / 30 fps (12Mbps)
1440 x 1080p / 25 fps (12Mbps)

640 x 480p / 30 fps (3Mbps)
640 x 480p / 25 fps (3Mbps)
Aspect Ratio 4:3, 16:9
Expert Reviews
What digital camera.32818507
9 September 2014

Usually you would expect a camera with such a high sensitivity range to be the preserve of professional sports or wildlife photographers, or photojournalists, but since the AF speed or shooting rate is not quite fast enough for serious sports or wildlife photographers, the A7S won’t really appeal to...

  • +

    High ISO noise performance; Great dynamic range

  • -

    Low resolution might not be for all; 4k option requires off-camera recording

Pc magazine.32817846
14 July 2014

The Sony Alpha 7S full-frame mirrorless camera offers incredible performance in low light, but you'll need an external recorder to take advantage of its 4K video support.

  • +

    Amazing high ISO capability. Full-frame image sensor. 5fps burst shooting. Sharp, tilting rear LCD. Excellent OLED EVF. Great control layout. Compact, dust and moisture-resistant body. Vertical shooting grip available.

  • -

    4K recording requires external recorder. No PC sync socket. No built-in flash. Limited native lens selection. Overactive EVF eye sensor.

Dp review.32823956
2 March 2015

Its 1080p footage is the cleanest, most detailed we've yet seen, with virtually no moiré and often jaw-dropping low-light performance. Some of the low light advantage is undercut if you need to stop-down to achieve sufficient depth-of-field but, unlike smaller sensor systems, you have the choice...

  • +

    Impressive image quality, Superb, detailed, essentially moiré-free 1080p footage, Outstanding 4K (UHD) video when used with external recorder, Useful, high resolution electronic viewfinder, Completely silent shooting available, Microphone and headphone ports, Useful tools, such as focus peaking and...

  • -

    Limited to contrast-detect AF, while a7/II siblings have on-sensor phase-detect AF, Lower dynamic range and resolution than immediate competitors, Sony's Raw compression scheme can lead to posterization at high contrast edges, Small battery can be restrictive, especially for video shooting, Lack of...

Imaging resource.34355410
16 May 2014

With the A7S, Sony steered away from the megapixel race and offered a rather unique option for their customers: a large, full-frame sensor with only 12 megapixels. To create such a sensor, the individual pixels are made significantly larger than the pixels on, say, Sony's 24.3MP A7 and 36.6MP A7R...

  • +

    Outstanding high ISO performance, for both stills and video, Excellent JPEG image quality at low to moderately high ISOs, Very good dynamic range, Picture Profiles including SLog2 for professional-grade dynamic range and picture customization for video and stills, XAVC S Full HD video is very high...

  • -

    12 megapixels may not be enough resolution for some applications, 4K video recording is only available with external recorder (not recorded internally), No Cinema 4K (4096 x 2160), Very limited selection of native full-frame lenses, Sluggish startup time, Continuous AF not supported in 5 fps "Speed...

10 September 2014

Sony A7s review: The Sony Alpha 7s adds a slew of new professional features to the company’s popular full-frame compact camera. Our head of testing put it through its paces in her latest review video.

Sierradescents com.34656880
15 August 2014

Is it perfect? No, obviously not. Perfect doesn't exist. But Sony's A7S is surely among the most exciting cameras ever made available to photographers at such an accessible price.

The luminous landscape.32833859
18 June 2014

Sony is what is known in the business world as a "spoiler". While many manufacturers are satisfied to add new chrome and bumpers to last year's model, Sony constantly pushes the envelope, sometimes fumbling the ball, but often scoring a home run – if you'll excuse the mixed metaphor.

29 July 2014

A niche camera in a family of niche cameras

User Reviews
B h photo.32817553
27 August 2015

Well, meanwhile, you all know the pros and cons of this little gem. But what you maybe don t know is that there s a massive fail on some units (a lot of them actually, might want to test your own camera) when shooting video at high ISO.

  • +

    Good in Low Light

  • -

    Short Battery Life

21 July 2015

After a long history with Nikon SLRs and DSLRs, decided to give the A7S a shot and see what the mirrorless hype was about. Primarily chose the A7S based on its video advantages over the A7 and A7R, but it hasn't disappointed in that department - but happily surprised by the quality of photos as...

  • +

    Great low light capability in both video and photo shooting. Beautiful, crisp images with great uncorrected color.

  • -

    Haven't discovered any significant cons yet, outside of entry price vs A7.

Review buydig com.33956271
21 October 2014

There is a world of photos I am just beginning to capture thanks to its low light sensor. It is truly amazing. Also their is a look to the pictures in any light which is very pleasing. I own A7R and Mark III and A7S is the only camera I use.

  • +

    There is a world of photos I am just beginning to capture thanks to its low light sensor. It is truly amazing. Also their is a look to the pictures in any light which is very pleasing. I own A7R and Mark III and A7S is the only camera I use.

  • -

    Focus is only OK

Dp review.33575663
2 December 2015

After 3 weeks with an A7S + a LA-EA4 and a Sony 50mm F1.4 and a Battery Grip ... I can say that I'm in love with this camera. Every photo we took are so nice, so colored, noiseless with a great IQ ... This camera is a toy that says : take photo, take photo, take photo !

Product Highlights
  • 12.2MP Full-Frame Exmor CMOS Sensor
  • BIONZ X Image Processor
  • Gapless On-Chip Lens Design
  • 3.0" 921.6k-Dot Tilting LCD Monitor
  • XGA 2.36M-Dot OLED Electronic Viewfinder
  • Full HD Recording in XAVC S
  • 4:2:2 UHD 4K Output via HDMI
  • Full Pixel Read-Out, S-Log2 Gamma
  • Expandable Sensitivity: ISO 50-409600
  • Fast Intelligent 25-Point AF System
Average Expert Score
Average User Score
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