Sony Alpha A7S II  (4K + 120fps HD)

Sony Alpha A7S II (4K + 120fps HD)

The a7S II has evolved in both Stills and Movies adding internal 4K video recording, 5-axis image stabilization and High-speed AF with enhanced accuracy – while maintaining its legendary low-light/ low noise capability for extraordinary high sensitivity of up to ISO 409,6002.

The first thing you need to know about the a7S is that it can record 1080p footage internally or be used to output 4K video to an external recorder. The internal 1080p footage is recorded using the XAVC S format, a more consumer-friendly version of Sony’s XAVC system. This is the first of the company’s cameras to use the format, which frees the camera from the bitrate restrictions of the AVCHD standard.

  • 12MP full-frame EXMOR CMOS sensor
  • Focuses at light levels to -4EV
  • 1080 footage at up to 50Mbps (XAVC S)
  • Extensive movie-focused capture options: S-Log2, Black Level, time code
  • Video ISO Range 100 – 409,600
  • Uncompressed 4:2:2 Full HD and 4K video output over HDMI
  • 2.36M dot OLED viewfinder
  • Mic and headphone sockets
  • 720/120p option for slow-mo capture
  • Wi-Fi with NFC

Article and Review: a7S High Speed Camera Review

Store: Sony Alpha a7S Mirrorless Digital Camera, 4K Video, HFR

Sony a7S Sony a7 II Sony a7R
Sensor specifications 12MP full-frame 24MP full-frame 36MP full-frame
Highest bitrate 50Mbps (1080p) 50Mbps (1080p) 28Mbps (1080p)
ISO Range (Stills)
Standard / Expanded
100 – 102,400
50 – 409,600
100 – 25,600
50 – 25,600
100 – 25,600
50 – 25,600
ISO Range (Movies) 200 – 102,400
200 – 409,600
200 – 25,600 200 – 25,600
Image Stabilization In-lens only In-body In-lens only
S-Log2 picture profile Yes Yes No
Electronic first curtain shutter Yes Yes No
Battery life (CIPA) 360 350 340
Weight 489g 559g 465g

12.2MP full-frame sensor for low light & wide dynamic range
The innovative a7S II features a 12.2 effective MP full-frame Exmor CMOS sensor paired with a powerful BIONZ X image processor, allowing it to shoot at a sensitivity range of ISO 50 – 409600 with unprecedented dynamic range. The extra-large pixels on the a7S II collects dramatically more light than t raditional cameras to produce beautifully detailed low-noise images in even the most challenging lighting situations.

World’s first Full-frame 4K movie recording with fu ll pixel readout and no pixel binning
The a7S II is the world’s first camera to offer internal 4K movie recording in the full-frame format with full pixel readout and no line skipping or pixel binning – resulting in images that exhibit higher resolution and less moiré and jaggies than typical 4K movies.

It also provides you the option of shooting 4k in the super 35mm format and the ability to capture uncompressed 4:2:2 Full HD or 4K QFHD output via HDMI to optional 3rd party external recorders. Enjoy the improved autofocus with 169 AF points and let every lens benefit from the 5-axis SteadyShot INSIDE image stabilization.

120fps Full HD 1920×1080 high-frame rate video for 5x slow motion
For the first time ever in the Sony a7 camera series, the a7S II can support high frame rate 120fps shooting in full-HD resolution (1920×1080) 100Mbps using the entire full frame sensor. Video can immediately be reviewed on the camera screen and eventually edited into appealing 4x/5x slow motion footage in Full HD (24p/30p) resolution.


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