About Sony Alpha a7S III

Introducing The Alpha 7S III.

A new milestone in sensitivity, speed and image supremacy. Featuring an all-new 12.1MP backside illuminated full-frame sensor with twice the readout speed for ultra-clean low-light images.

Improved Image Quality.

The new CMOS image sensor and BIONZ XR™ image processing engine in the Alpha 7S III delivers legendary S-series sensitivity with significantly enhanced color reproduction and texture renderings for improved overall image quality. The base ISO has been lowered to 80, resulting in a normal range of 80-102,400 (expandable to 80-409,600 for video and 40-409,600 for stills) to provide more flexible ISO plus wide dynamic range with low noise at all settings. It offers improved image quality by approximately 1 stop of noise reduction in the middle and high sensitivity ranges.

Versatile Operability.
For the first time in an Alpha 7S series camera, the Alpha 7S III offers Fast Hybrid AF by combining phase-detection and contrast-detection AF, giving it the ability to track subjects over a wide area with outstanding speed, precision and smoothness, even when using a narrow depth of field. Fine focus expression is possible with Sony’s E-mount lenses.

Advanced Autofocus Performance for Hybrid Use.
For environments with a lot of movement, Real-time Tracking and Real-time Eye AF are available to maintain constant focus on the intended subject. Sony’s advanced Real-time Eye AF improves detection performance by 30% over the previous system, thanks to the new image processing engine. It ensures accurate, reliable detection, even when the subject’s face looks away. Real-time Tracking is initiated simply by touching the subject on the screen. Real-time Eye AF is automatically initiated when an eye is detected.

Flexible Autofocus Settings for Movie Shooting.
Based on customer feedback, the camera includes several AF features for professional users including AF Transition Speed in seven settings, to easily create rack-focus transitions, and five AF Subject Shift Sensitivity settings, which allows the user to customize how easily AF will switch or stay with the locked-on subject. Touch Tracking allows user to not only initiate Real-time Tracking, but also compose and shoot while using a gimbal or while shooting solo. It’s now possible to Touch Focus during manual focus mode on the LCD screen or remotely from the Imaging Edge Mobile application.

New Heat-Dissipating Structure.
The Alpha 7S III’s design has been updated to ensure effective heat dissipation and minimizes overheating — even during extended continuous recording sessions at 4K 60p 10-bit 4:2:2 video lasting an hour or more. A newly developed unique heat dissipating structure keeps the image sensor and image processing engine temperatures within their normal operating ranges, preventing overheating while maintaining compact body dimensions. The new heat-dissipating structure requires no fan or cabinet vents allowing Alpha 7S III to maintain dust and moisture resistance.

Movie Assist Functions.
For video on-the-go, the Alpha 7S III is the first Alpha series camera to include Active Mode with 5-axis optical in-body image stabilization to support especially difficult handheld movie shooting. It is also the first Alpha series E-mount body to feature a side-opening vari-angle rear screen, perfect for gimbal-mounted shots, complicated angles, handheld operation and more.

Outstanding Still Image Photography.
The Alpha 7S III includes a fast Hybrid AF system with 759 phase-detection AF points covering 92% of the image sensor. The camera can also achieve high AF precision to accurately and reliably focus in light down to EV-6, where subjects are difficult to see clearly even with the naked eye. Users can continuously shoot more than 1,000 uncompressed RAW images at up to 10fps, or up to 8fps in live view mode, with either the mechanical or electronic shutter.

Versatile Design Made for the Pros.
In another world’s first, the Alpha 7S III features two CFexpress Type A compatible media slots which also support UHS-I and UHS-II SDXC/SDHC cards, enabling high write-and-read speeds while keeping the camera body compact in size.

Revised Menu System with Enhanced Touch Screen.
The Alpha 7S III also features a revised menu structure for easier navigation and touch-responsive menu operation for faster, more intuitive control. For creators who shoot both stills and movies, separate settings can now be stored for stills and movie shooting for quick transition between the two.

High Reliability Gives Creators New Freedom.
Professional users need more than just refined features and performance. They also need the reliability and durability demanded of any professional tool. The Alpha 7S III features a redesigned grip for greater comfort and a secure hold, an improved dust removal feature, plus dust and moisture resistance xviii that maximizes reliability in challenging environments. It includes a durable, reliable HDMI Type-A connector, and is the first Alpha series camera to support USB PD (Power Delivery), allowing higher power to be supplied from an external source so that users can continue to record for extended periods with minimal internal battery usage.

Features.

• 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