Good news, your camera is supported by SILKYPIX!
Sony A7S III Features
• Sensor: 24.2MP Full Frame CMOS
• File Format: Stills – JPEG, Raw Up to 6000 x 4000 / Video – XAVC S (MPEG-4 AVC/H.264)
• ISO Range: 100-51200 (Extended Mode: 50-204800)
• AF Points: 425 Contrast Detection/693 Phase Detection
• Ports: ⅛ Headphone, ⅛ Microphone, Micro-HDMI (Type D), Micro USB 2.0 (Type B), USB-C
• Flash: Hot Shoe Only (Warning: No PC Sync Port)
• FPS: Up to 10
• Lens Compatibility: E Mount (Lens Not Included)
• Memory: Dual (UHS-I/UHS-II) SD/SDHC/SDXC Slots (Cards Not Included)
• Live View, 3.0" Tilting Touchscreen LCD
• Built-In WiFi
• Built-In 5-Axis Image Stabilization
• Weight: 1.43 lbs
RAW Conversion & Sony A7S III
SILKYPIX Developer Studio 10 and SILKYPIX Developer Studio Pro10 and later added support for this camera on November 19, 2020.