Brands Guides About
Sony ILCE7SM3/B Alpha a7S III 4K Mirrorless Camera — main product image
Sony

Sony ILCE7SM3/B Alpha a7S III 4K Mirrorless Camera

4KUHD1MP12MPf/2.8

Capture Cinematic Brilliance with Unparalleled Performance The Sony Alpha a7S III redefines full-frame mirrorless camera capabilities with optimized video, sensitivity, and speed. Featuring a 12.1MP Exmor R BSI CMOS sensor and BIONZ XR image processor, this camera delivers exceptional performanc...

$5,499.95*
✓ In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Jul 21, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

Capture Cinematic Brilliance with Unparalleled Performance

The Sony Alpha a7S III redefines full-frame mirrorless camera capabilities with optimized video, sensitivity, and speed. Featuring a 12.1MP Exmor R BSI CMOS sensor and BIONZ XR image processor, this camera delivers exceptional performance, improved noise reduction, and a wide dynamic range, perfect for professional video and photography.

Specifications:

  • Brand: Sony
  • Model: ILCE7SM3/B
  • Sensor: 12.1MP Full-Frame Exmor R BSI CMOS Sensor
  • Processor: BIONZ XR Image Processor
  • Video: UHD 4K 120p Video, 10-Bit 4:2:2 Internal
  • ISO: Extended ISO 40-409600
  • Autofocus: 759-Point Fast Hybrid AF
  • EVF: 9.44m-Dot QXGA OLED EVF
  • Touchscreen: 3.0" 1.44m-Dot Vari-Angle Touchscreen
  • Image Stabilization: 5-Axis SteadyShot Image Stabilization
  • Continuous Shooting: 10 fps Shooting
  • Card Slots: Dual CFexpress Type A/SD Card Slots

Included in Bundle:

  • Sony Alpha a7S III Mirrorless Digital Camera (Body Only)
  • Sony FE 70-200mm f/2.8 GM OSS Lens
  • SanDisk SecureDigital 64GB Extreme PRO Memory Card
  • 2 x NP-FZ100 Rechargeable Lithium-Ion Battery
  • Corel Photo Software Suite
  • Large Padded Case
  • Additional accessories included

Key Features

Bundle Includes: 1 x Sony Alpha a7S III Mirrorless Digital Camera (Body Only), 1 x Sony FE 70-200mm f/2.8 GM OSS Lens, 1 x SanDisk SecureDigital 64GB Extreme PRO Memory Card, 2 x NP-FZ100 Rechargeable Battery, 1 x Corel Photo Software With PhotoMirage, AfterShot, Painter Essentials, PaintShop Pro, and Video Studio, 1 x Large Padded Case, 1 x NP-FZ100 charger, 1 x Memory Card Reader, 1 x Mini Portable LED Video Light , 1 x 3 Piece Pro Filter Kit UV/CPL/F 77MM and more...

Optimized video, optimized sensitivity, optimized speed, the Sony Alpha 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.

Video is the primary application of the a7S III, and improvements to the sensor and processor enable faster readout speeds and greatly reduced rolling shutter, along with high-bitrate internal recording, 16-bit raw output via the full-size HDMI port, and flexible control over motion with variable frame rate selection. 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.

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. The sensor and BIONZ XR processor also facilitate impressive sensitivity, with an expanded range from ISO 40-409600, as well as fast 10 fps continuous shooting for up to 1000 consecutive raw frames.

Key Features: 12MP Full-Frame Exmor R BSI CMOS Sensor - UHD 4K 120p Video, 10-Bit 4:2:2 Internal - 16-Bit Raw Output, HLG & S-Log3 Gammas - 759-Point Fast Hybrid AF - 9.44m-Dot QXGA OLED EVF - 3.0" 1.44m-Dot Vari-Angle Touchscreen - 5-Axis SteadyShot Image Stabilization - Extended ISO 40-409600, 10 fps Shooting - Dual CFexpress Type A/SD Card Slots.

Specifications

Sensor Type
12.1MP Full-Frame Exmor R BSI CMOS
Image Processor
BIONZ XR
Video Resolution
UHD 4K 120p
Internal Video Sampling
10-Bit 4:2:2
Raw Output
16-Bit via Full-Size HDMI
ISO Range (Expanded)
40-409600
Continuous Shooting Speed
10 fps (up to 1000 raw frames)
Autofocus Points
759 Phase-Detection
Image Stabilization
5-Axis SteadyShot
Electronic Viewfinder
9.44m-Dot QXGA OLED EVF
Rear Display
3.0" 1.44m-Dot Vari-Angle Touchscreen
Memory Card Slots
Dual CFexpress Type A/SD
Bundled Lens
Sony FE 70-200mm f/2.8 GM OSS

Frequently Asked Questions

The Sony Alpha a7S III features a 12.1MP Full-Frame Exmor R BSI CMOS sensor, optimized for video and low-light performance.
The camera can record UHD 4K 120p video internally with 10-bit 4:2:2 sampling, and also offers 16-bit raw output via its full-size HDMI port.
The a7S III utilizes 759 phase-detection points for improved autofocus, offering intelligent subject tracking and Real-time Eye AF for maintaining critical focus on moving subjects across all recording modes.
The camera provides an expanded ISO sensitivity range from 40-409600, which is beneficial for capturing images in diverse lighting conditions, including very low light.
Yes, the Sony Alpha a7S III includes 5-Axis SteadyShot Image Stabilization to help reduce the appearance of camera shake for sharper photos and smoother video.
The Sony Alpha a7S III is equipped with dual memory card slots that support both CFexpress Type A and SD cards, providing flexible storage options.
This bundle includes the Sony FE 70-200mm f/2.8 GM OSS Lens, a high-performance telephoto zoom lens.

Related Products