Sony A7S MKIII

Optimized video, optimized sensitivity, optimized speed, the Sony a7S III raises the bar for what a full-frame mirrorless camera is capable of. A revised 12.1MP Exmor R BSI CMOS sensor and updated BIONZ XR image processor offer faster performance, improved noise reduction, and a wider dynamic range, along with UHD 4K 120p video recording and internal 10-bit 4:2:2 sampling.

A redesigned 12.1MP full-frame CMOS sensor now features a back-illuminated Exmor RS design in order to achieve improved clarity and reduced noise along with the expectedly impressive sensitivity, from ISO 80-102400 with an extended ISO 40-409600 range. The updated sensor design also yields 2x faster readout speeds than previous generations and, when coupled with the revised BIONZ XR image processor, greatly reduces rolling shutter by 3x and up to 8x faster processing and overall camera handling. The sensor and processor combination also helps to achieve a wide dynamic range, of up to approximately 14 stops for stills and 15 stops for video, and 10 fps continuous shooting for up to 1000 uncompressed raw files for stills.

Features:

Actual: 12.9 Megapixel
Effective: 12.1 Megapixel (4240 x 2832)

35.6 x 23.8 mm (Full-Frame) CMOS

Sensor-Shift, 5-Axis

Electronic Shutter, Mechanical Focal Plane Shutter

1/8000 to 30 Second

Photo
80 to 102,400 (Extended: 40 to 409,600)
Video
80 to 102,400 (Extended: 80 to 409,600)

Aperture Priority, Manual, Program, Shutter Priority

2500 to 9900K
Presets: Auto, Cloudy, Custom, Daylight, Flash, Fluorescent, Incandescent, Shade, Underwater

Up to 10 fps at 12.1 MP for up to 1000 Frames (Raw) / 1000 Frames (JPEG)
Up to 8 fps at 12.1 MP
Up to 6 fps at 12.1 MP
Up to 3 fps at 12.1 MP

Image Sizes

3:2
11 MP (3776 x 2832)
4.6 MP (2464 x 1848)
2.7 MP (1888 x 1416)
1.1 MP (1232 x 920)
8 MP (2832 x 2832)
3.4 MP (1840 x 1840)
2 MP (1408 x 1408)
0.8 MP (912 x 912)
10 MP (4240 x 2384)
4.3 MP (2768 x 1560)
2.6 MP (2128 x 1200)
4.3 MP (2768 x 1560)
1.1 MP (2128 x 1416)
12 MP (4240 x 2832)
5.1 MP (2768 x 1848)
3 MP (2128 x 1416)
5.1 MP (2768 x 1848)
1.3 MP (1376 x 920)

Aspect Ratio

1:1, 3:2, 4:3, 16:9

Image File Format

HEIF, JPEG, Raw

Bit Depth

14-Bit

Internal Recording Modes

H.265/XAVC HS 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98/50/59.94/100/119.88 fps [50 to 280 Mb/s]
H.265/XAVC HS 4:2:0 10-Bit
UHD 4K (3840 x 2160) at 23.98/50/59.94/100/119.88 fps [30 to 200 Mb/s]
H.264/XAVC S-I 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94 fps [240 to 600 Mb/s]
1920 x 1080p at 23.98/25/29.97/50/59.94 fps [89 to 222 Mb/s]
H.264/XAVC S 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94/100/119.88 fps [100 to 280 Mb/s]
1920 x 1080p at 23.98/25/29.97/50/59.94 fps [50 Mb/s]
H.264/XAVC S 4:2:0 8-Bit
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94/100/119.88 fps [60 to 200 Mb/s]
1920 x 1080p at 23.98/25/29.97/50/59.94/100/119.88/200/239.76 fps [16 to 100 Mb/s]

External Recording Modes

Raw 16-Bit via HDMI
4264 x 2408 up to 59.94 fps
4:2:2 10-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94 fps
1920 x 1080p at 23.98/50/59.94 fps
1920 x 1080i at 50/59.94 fps
4:2:0 8-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94 fps
1920 x 1080p at 23.98/50/59.94 fps
1920 x 1080i at 50/59.94 fps

Sensor Crop Modes

Super35 / APS-C

Fast-/Slow-Motion Support

Yes

Gamma Curve

Sony S-Log 2, Sony S-Log 3

1.35lbs (Body Only)

  • Sony Alpha a7S III Mirrorless Digital Camera
  • MetaBones Adapter: PL, EF, EF Speed Booster
  • (2) Sony NP-FZ100 Lithium-Ion Rechargeable Battery (Z-Series)
  • Sony Charger for Sony Z-Series Lithium-ion Batteries 
  • (2) Sony CFExpress Type A 80gb
  • Sony MRW-G2 CFexpress Type A/SD Memory Card Reader
  • Thunderbolt 3 Type USB-C Cable