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Sony Alpha a7S III Mirrorless Digital Camera (Body Only)
- 4K 120p Video Quality
- 12.1MP Exmor R BSI CMOS sensor
- 16-Bit Raw Output
- 759-Point Fast Hybrid AF
Cinematic Qualities In A Mirrorless Body
The Sony Alpha a7S III Mirrorless Digital Camera offers unprecedented cinema qualities in a mirrorless form factor. Featuring an updated 12.1MP Exmor R BSI CMOS sensor and BIONZ XR image processor, the Alpha a7s III delivers exceptional imaging performance. In terms of video quality, the Sony a7s iii features UHD 4K 120p video recording and internal 10-bit 4:2:2 sampling.
The Sony Alpha a7s III features a revised sensor and processor that reduces the rolling shutter, and enables rapid readout speeds. The a7S III also does away with recording time limits and incorporates HLG for direct HDR production as well as S-Log2/S-Log3 gamma profiles for advanced HDR production with editing. The updated sensor design also brings improved autofocus performance via 759 phase-detection points, which offer intelligent subject tracking and Real-time Eye AF to ensure critical focus on moving subjects in all recording modes.
UHD 4K 120p Video
Recording up to UHD 4K is possible with frame rates up to 120p, using full 1:1 pixel readout without binning. Internal 10-bit 4:2:2 sampling is also possible in all recording modes and, if recording externally via the full-size HDMI A port, 16-bit raw output is also possible for even greater tonal reproduction and post-production flexibility. Additionally, two codecs have also been developed: XAVC HS, which uses HEVC/H.265 encoding to retain more detail at smaller bitrates, and XAVC S-I, which is an intraframe codec for consistent performance and quality at bitrates up to 600 Mb/s.
The high-speed, 120 fps recording also enables 4x and 5x slow-motion movie recording with the frame rate playback set to either 30p or 24p or, if moving down to Full HD resolution, an effective 240p frame rate is also available for even greater motion control. Additionally, suiting long-form recording, the a7S III does not have any recording time limits to allow for unlimited clip lengths. The camera's physical design also features an improved heat-dissipating structure to promote longer possible recording times, up to an approximate 60-minute recording time at 4K60p.
Affording extensive customizable color and gamma controls, the Sony a7S III allows users to adjust the gamma, black level, knee, color level, and more. Also, users can use the same S-Log2 Gamma Curve that is found on high end Sony Cinema cameras that squeezes up to 1300% more dynamic range into the video signal then traditional REC709, for increased post-production flexibility. HLG (Hybrid Log-Gamma) support is also available, along with the BT.2020 color space, for recording within a wide color gamut and, in addition to S-Log2, S-Log3 is also available for producing a 15+-stop dynamic range with increased grading control in the shadow to mid-tone regions of the image.
12.1MP Exmor RS BSI CMOS Sensor and BIONZ XR Image Processor
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.
- Class leading low-light performance up to ISO 409,600 with low noise
- Up to 120p 4K 10-bit 4:2:2
- Full pixel readout in all rec. modes
- 16-bit 60p RAW output via HDMI
- 15+ stops dynamic range
- Effective heat management with long recording times for 1-hour 4K 60p
- No 29min. 59sec. rec. limit
- Reduced rolling shutter from low 12.1MP and fast sensor readout
- Dual card slots, both compatible with CFexpress Type A and SD
- 9.44 million dot EVF
- Flip out vari-angle touch panel LCD
- 5-axis IBIS with Active mode
- Long battery life extendable via USB Type C with Power Delivery
- Picture Profiles including 10-bit 4:2:2 HLG and S-Log 2 & 3
- 10 customizable creative looks
- MI shoe with digital audio interface
- Full size HDMI Type-A connector
- USB-C to Ethernet wired LAN (via optional adaptor)
- Small size and light weight
Sony NP-FZ100 Rechargeable Lithium-Ion Battery (2280mAh)
Sony BC-QZ1 Battery Charger
Sony ALC-B1EM Body Cap for E-Mount Cameras
USB Type-C to Type-A Cable
Accessory Shoe Cap
|Camera Format||Full-Frame (1x Crop Factor)|
Viewfinder and Monitor